18132578

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1\times {\mathrm{557}}^1$

素因数の和:997

約数の個数: 16

約数和(自身を含む): 27982584

約数和(自身を除く): 9850006

約数列:

[1, 2, 41, 82, 397, 557, 794, 1114, 16277, 22837, 32554, 45674, 221129, 442258, 9066289, 18132578]

約数ペア:

[(1, 18132578), (2, 9066289), (41, 442258), (82, 221129), (397, 45674), (557, 32554), (794, 22837), (1114, 16277)]