18667874

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{907}}^1$

素因数の和:1201

約数の個数: 16

約数和(自身を含む): 28830816

約数和(自身を除く): 10162942

約数列:

[1, 2, 41, 82, 251, 502, 907, 1814, 10291, 20582, 37187, 74374, 227657, 455314, 9333937, 18667874]

約数ペア:

[(1, 18667874), (2, 9333937), (41, 455314), (82, 227657), (251, 74374), (502, 37187), (907, 20582), (1814, 10291)]