21563694

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 48522240

約数和(自身を除く): 26958546

約数列:

[1, 2, 3, 6, 9, 18, 47, 71, 94, 141, 142, 213, 282, 359, 423, 426, 639, 718, 846, 1077, 1278, 2154, 3231, 3337, 6462, 6674, 10011, 16873, 20022, 25489, 30033, 33746, 50619, 50978, 60066, 76467, 101238, 151857, 152934, 229401, 303714, 458802, 1197983, 2395966, 3593949, 7187898, 10781847, 21563694]

約数ペア:

[(1, 21563694), (2, 10781847), (3, 7187898), (6, 3593949), (9, 2395966), (18, 1197983), (47, 458802), (71, 303714), (94, 229401), (141, 152934), (142, 151857), (213, 101238), (282, 76467), (359, 60066), (423, 50978), (426, 50619), (639, 33746), (718, 30033), (846, 25489), (1077, 20022), (1278, 16873), (2154, 10011), (3231, 6674), (3337, 6462)]