19881390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{662713}}^1$

素因数の和:662723

約数の個数: 16

約数和(自身を含む): 47715408

約数和(自身を除く): 27834018

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 662713, 1325426, 1988139, 3313565, 3976278, 6627130, 9940695, 19881390]

約数ペア:

[(1, 19881390), (2, 9940695), (3, 6627130), (5, 3976278), (6, 3313565), (10, 1988139), (15, 1325426), (30, 662713)]