21493920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{6397}}^1$

素因数の和:6422

約数の個数: 96

約数和(自身を含む): 77390208

約数和(自身を除く): 55896288

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 6397, 12794, 19191, 25588, 31985, 38382, 44779, 51176, 63970, 76764, 89558, 95955, 102352, 127940, 134337, 153528, 179116, 191910, 204704, 223895, 255880, 268674, 307056, 358232, 383820, 447790, 511760, 537348, 614112, 671685, 716464, 767640, 895580, 1023520, 1074696, 1343370, 1432928, 1535280, 1791160, 2149392, 2686740, 3070560, 3582320, 4298784, 5373480, 7164640, 10746960, 21493920]

約数ペア:

[(1, 21493920), (2, 10746960), (3, 7164640), (4, 5373480), (5, 4298784), (6, 3582320), (7, 3070560), (8, 2686740), (10, 2149392), (12, 1791160), (14, 1535280), (15, 1432928), (16, 1343370), (20, 1074696), (21, 1023520), (24, 895580), (28, 767640), (30, 716464), (32, 671685), (35, 614112), (40, 537348), (42, 511760), (48, 447790), (56, 383820), (60, 358232), (70, 307056), (80, 268674), (84, 255880), (96, 223895), (105, 204704), (112, 191910), (120, 179116), (140, 153528), (160, 134337), (168, 127940), (210, 102352), (224, 95955), (240, 89558), (280, 76764), (336, 63970), (420, 51176), (480, 44779), (560, 38382), (672, 31985), (840, 25588), (1120, 19191), (1680, 12794), (3360, 6397)]