20535522

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 48881664

約数和(自身を除く): 28346142

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 101, 103, 141, 202, 206, 282, 303, 309, 329, 606, 618, 658, 707, 721, 987, 1414, 1442, 1974, 2121, 2163, 4242, 4326, 4747, 4841, 9494, 9682, 10403, 14241, 14523, 20806, 28482, 29046, 31209, 33229, 33887, 62418, 66458, 67774, 72821, 99687, 101661, 145642, 199374, 203322, 218463, 436926, 488941, 977882, 1466823, 2933646, 3422587, 6845174, 10267761, 20535522]

約数ペア:

[(1, 20535522), (2, 10267761), (3, 6845174), (6, 3422587), (7, 2933646), (14, 1466823), (21, 977882), (42, 488941), (47, 436926), (94, 218463), (101, 203322), (103, 199374), (141, 145642), (202, 101661), (206, 99687), (282, 72821), (303, 67774), (309, 66458), (329, 62418), (606, 33887), (618, 33229), (658, 31209), (707, 29046), (721, 28482), (987, 20806), (1414, 14523), (1442, 14241), (1974, 10403), (2121, 9682), (2163, 9494), (4242, 4841), (4326, 4747)]