20127218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 33534000

約数和(自身を除く): 13406782

約数列:

[1, 2, 17, 29, 34, 58, 137, 149, 274, 298, 493, 986, 2329, 2533, 3973, 4321, 4658, 5066, 7946, 8642, 20413, 40826, 67541, 73457, 135082, 146914, 347021, 591977, 694042, 1183954, 10063609, 20127218]

約数ペア:

[(1, 20127218), (2, 10063609), (17, 1183954), (29, 694042), (34, 591977), (58, 347021), (137, 146914), (149, 135082), (274, 73457), (298, 67541), (493, 40826), (986, 20413), (2329, 8642), (2533, 7946), (3973, 5066), (4321, 4658)]