19897718

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{5179}}^1$

素因数の和:5311

約数の個数: 16

約数和(自身を含む): 31888080

約数和(自身を除く): 11990362

約数列:

[1, 2, 17, 34, 113, 226, 1921, 3842, 5179, 10358, 88043, 176086, 585227, 1170454, 9948859, 19897718]

約数ペア:

[(1, 19897718), (2, 9948859), (17, 1170454), (34, 585227), (113, 176086), (226, 88043), (1921, 10358), (3842, 5179)]