21218400

素因数分解:

$2^5\times 3^2\times 5^2\times 7^1\times {\mathrm{421}}^1$

素因数の和:454

約数の個数: 216

約数和(自身を含む): 85713264

約数和(自身を除く): 64494864

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 96, 100, 105, 112, 120, 126, 140, 144, 150, 160, 168, 175, 180, 200, 210, 224, 225, 240, 252, 280, 288, 300, 315, 336, 350, 360, 400, 420, 421, 450, 480, 504, 525, 560, 600, 630, 672, 700, 720, 800, 840, 842, 900, 1008, 1050, 1120, 1200, 1260, 1263, 1400, 1440, 1575, 1680, 1684, 1800, 2016, 2100, 2105, 2400, 2520, 2526, 2800, 2947, 3150, 3360, 3368, 3600, 3789, 4200, 4210, 5040, 5052, 5600, 5894, 6300, 6315, 6736, 7200, 7578, 8400, 8420, 8841, 10080, 10104, 10525, 11788, 12600, 12630, 13472, 14735, 15156, 16800, 16840, 17682, 18945, 20208, 21050, 23576, 25200, 25260, 26523, 29470, 30312, 31575, 33680, 35364, 37890, 40416, 42100, 44205, 47152, 50400, 50520, 53046, 58940, 60624, 63150, 67360, 70728, 73675, 75780, 84200, 88410, 94304, 94725, 101040, 106092, 117880, 121248, 126300, 132615, 141456, 147350, 151560, 168400, 176820, 189450, 202080, 212184, 221025, 235760, 252600, 265230, 282912, 294700, 303120, 336800, 353640, 378900, 424368, 442050, 471520, 505200, 530460, 589400, 606240, 663075, 707280, 757800, 848736, 884100, 1010400, 1060920, 1178800, 1326150, 1414560, 1515600, 1768200, 2121840, 2357600, 2652300, 3031200, 3536400, 4243680, 5304600, 7072800, 10609200, 21218400]

約数ペア:

[(1, 21218400), (2, 10609200), (3, 7072800), (4, 5304600), (5, 4243680), (6, 3536400), (7, 3031200), (8, 2652300), (9, 2357600), (10, 2121840), (12, 1768200), (14, 1515600), (15, 1414560), (16, 1326150), (18, 1178800), (20, 1060920), (21, 1010400), (24, 884100), (25, 848736), (28, 757800), (30, 707280), (32, 663075), (35, 606240), (36, 589400), (40, 530460), (42, 505200), (45, 471520), (48, 442050), (50, 424368), (56, 378900), (60, 353640), (63, 336800), (70, 303120), (72, 294700), (75, 282912), (80, 265230), (84, 252600), (90, 235760), (96, 221025), (100, 212184), (105, 202080), (112, 189450), (120, 176820), (126, 168400), (140, 151560), (144, 147350), (150, 141456), (160, 132615), (168, 126300), (175, 121248), (180, 117880), (200, 106092), (210, 101040), (224, 94725), (225, 94304), (240, 88410), (252, 84200), (280, 75780), (288, 73675), (300, 70728), (315, 67360), (336, 63150), (350, 60624), (360, 58940), (400, 53046), (420, 50520), (421, 50400), (450, 47152), (480, 44205), (504, 42100), (525, 40416), (560, 37890), (600, 35364), (630, 33680), (672, 31575), (700, 30312), (720, 29470), (800, 26523), (840, 25260), (842, 25200), (900, 23576), (1008, 21050), (1050, 20208), (1120, 18945), (1200, 17682), (1260, 16840), (1263, 16800), (1400, 15156), (1440, 14735), (1575, 13472), (1680, 12630), (1684, 12600), (1800, 11788), (2016, 10525), (2100, 10104), (2105, 10080), (2400, 8841), (2520, 8420), (2526, 8400), (2800, 7578), (2947, 7200), (3150, 6736), (3360, 6315), (3368, 6300), (3600, 5894), (3789, 5600), (4200, 5052), (4210, 5040)]