21176400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{2521}}^1$

素因数の和:2549

約数の個数: 120

約数和(自身を含む): 77556544

約数和(自身を除く): 56380144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 100, 105, 112, 120, 140, 150, 168, 175, 200, 210, 240, 280, 300, 336, 350, 400, 420, 525, 560, 600, 700, 840, 1050, 1200, 1400, 1680, 2100, 2521, 2800, 4200, 5042, 7563, 8400, 10084, 12605, 15126, 17647, 20168, 25210, 30252, 35294, 37815, 40336, 50420, 52941, 60504, 63025, 70588, 75630, 88235, 100840, 105882, 121008, 126050, 141176, 151260, 176470, 189075, 201680, 211764, 252100, 264705, 282352, 302520, 352940, 378150, 423528, 441175, 504200, 529410, 605040, 705880, 756300, 847056, 882350, 1008400, 1058820, 1323525, 1411760, 1512600, 1764700, 2117640, 2647050, 3025200, 3529400, 4235280, 5294100, 7058800, 10588200, 21176400]

約数ペア:

[(1, 21176400), (2, 10588200), (3, 7058800), (4, 5294100), (5, 4235280), (6, 3529400), (7, 3025200), (8, 2647050), (10, 2117640), (12, 1764700), (14, 1512600), (15, 1411760), (16, 1323525), (20, 1058820), (21, 1008400), (24, 882350), (25, 847056), (28, 756300), (30, 705880), (35, 605040), (40, 529410), (42, 504200), (48, 441175), (50, 423528), (56, 378150), (60, 352940), (70, 302520), (75, 282352), (80, 264705), (84, 252100), (100, 211764), (105, 201680), (112, 189075), (120, 176470), (140, 151260), (150, 141176), (168, 126050), (175, 121008), (200, 105882), (210, 100840), (240, 88235), (280, 75630), (300, 70588), (336, 63025), (350, 60504), (400, 52941), (420, 50420), (525, 40336), (560, 37815), (600, 35294), (700, 30252), (840, 25210), (1050, 20168), (1200, 17647), (1400, 15126), (1680, 12605), (2100, 10084), (2521, 8400), (2800, 7563), (4200, 5042)]