20995478

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{51713}}^1$

素因数の和:51751

約数の個数: 16

約数和(自身を含む): 37234080

約数和(自身を除く): 16238602

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 51713, 103426, 361991, 723982, 1499677, 2999354, 10497739, 20995478]

約数ペア:

[(1, 20995478), (2, 10497739), (7, 2999354), (14, 1499677), (29, 723982), (58, 361991), (203, 103426), (406, 51713)]