13489340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21757}}^1$

素因数の和:21797

約数の個数: 24

約数和(自身を含む): 29242752

約数和(自身を除く): 15753412

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21757, 43514, 87028, 108785, 217570, 435140, 674467, 1348934, 2697868, 3372335, 6744670, 13489340]

約数ペア:

[(1, 13489340), (2, 6744670), (4, 3372335), (5, 2697868), (10, 1348934), (20, 674467), (31, 435140), (62, 217570), (124, 108785), (155, 87028), (310, 43514), (620, 21757)]