18991027

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1609}}^1$

素因数の和:1686

約数の個数: 16

約数和(自身を含む): 22024800

約数和(自身を除く): 3033773

約数列:

[1, 11, 29, 37, 319, 407, 1073, 1609, 11803, 17699, 46661, 59533, 513271, 654863, 1726457, 18991027]

約数ペア:

[(1, 18991027), (11, 1726457), (29, 654863), (37, 513271), (319, 59533), (407, 46661), (1073, 17699), (1609, 11803)]