20735897

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{179}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 6681703

約数列:

[1, 7, 13, 19, 67, 91, 133, 179, 247, 469, 871, 1253, 1273, 1729, 2327, 3401, 6097, 8911, 11993, 16289, 16549, 23807, 44213, 83951, 115843, 155909, 227867, 309491, 1091363, 1595069, 2962271, 20735897]

約数ペア:

[(1, 20735897), (7, 2962271), (13, 1595069), (19, 1091363), (67, 309491), (91, 227867), (133, 155909), (179, 115843), (247, 83951), (469, 44213), (871, 23807), (1253, 16549), (1273, 16289), (1729, 11993), (2327, 8911), (3401, 6097)]