18988486

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{45427}}^1$

素因数の和:45459

約数の個数: 16

約数和(自身を含む): 32708160

約数和(自身を除く): 13719674

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 45427, 90854, 499697, 863113, 999394, 1726226, 9494243, 18988486]

約数ペア:

[(1, 18988486), (2, 9494243), (11, 1726226), (19, 999394), (22, 863113), (38, 499697), (209, 90854), (418, 45427)]