18613906

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{563}}^1$

素因数の和:897

約数の個数: 16

約数和(自身を含む): 28533888

約数和(自身を除く): 9919982

約数列:

[1, 2, 61, 122, 271, 542, 563, 1126, 16531, 33062, 34343, 68686, 152573, 305146, 9306953, 18613906]

約数ペア:

[(1, 18613906), (2, 9306953), (61, 305146), (122, 152573), (271, 68686), (542, 34343), (563, 33062), (1126, 16531)]