20509342

素因数分解:

$2^1\times 7^4\times {\mathrm{4271}}^1$

素因数の和:4301

約数の個数: 20

約数和(自身を含む): 35897616

約数和(自身を除く): 15388274

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4271, 4802, 8542, 29897, 59794, 209279, 418558, 1464953, 2929906, 10254671, 20509342]

約数ペア:

[(1, 20509342), (2, 10254671), (7, 2929906), (14, 1464953), (49, 418558), (98, 209279), (343, 59794), (686, 29897), (2401, 8542), (4271, 4802)]