21825720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2887}}^1$

素因数の和:2914

約数の個数: 128

約数和(自身を含む): 83174400

約数和(自身を除く): 61348680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2887, 3780, 5774, 7560, 8661, 11548, 14435, 17322, 20209, 23096, 25983, 28870, 34644, 40418, 43305, 51966, 57740, 60627, 69288, 77949, 80836, 86610, 101045, 103932, 115480, 121254, 129915, 155898, 161672, 173220, 181881, 202090, 207864, 242508, 259830, 303135, 311796, 346440, 363762, 389745, 404180, 485016, 519660, 545643, 606270, 623592, 727524, 779490, 808360, 909405, 1039320, 1091286, 1212540, 1455048, 1558980, 1818810, 2182572, 2425080, 2728215, 3117960, 3637620, 4365144, 5456430, 7275240, 10912860, 21825720]

約数ペア:

[(1, 21825720), (2, 10912860), (3, 7275240), (4, 5456430), (5, 4365144), (6, 3637620), (7, 3117960), (8, 2728215), (9, 2425080), (10, 2182572), (12, 1818810), (14, 1558980), (15, 1455048), (18, 1212540), (20, 1091286), (21, 1039320), (24, 909405), (27, 808360), (28, 779490), (30, 727524), (35, 623592), (36, 606270), (40, 545643), (42, 519660), (45, 485016), (54, 404180), (56, 389745), (60, 363762), (63, 346440), (70, 311796), (72, 303135), (84, 259830), (90, 242508), (105, 207864), (108, 202090), (120, 181881), (126, 173220), (135, 161672), (140, 155898), (168, 129915), (180, 121254), (189, 115480), (210, 103932), (216, 101045), (252, 86610), (270, 80836), (280, 77949), (315, 69288), (360, 60627), (378, 57740), (420, 51966), (504, 43305), (540, 40418), (630, 34644), (756, 28870), (840, 25983), (945, 23096), (1080, 20209), (1260, 17322), (1512, 14435), (1890, 11548), (2520, 8661), (2887, 7560), (3780, 5774)]