18871088

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69379}}^1$

素因数の和:69404

約数の個数: 20

約数和(自身を含む): 38714040

約数和(自身を除く): 19842952

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69379, 138758, 277516, 555032, 1110064, 1179443, 2358886, 4717772, 9435544, 18871088]

約数ペア:

[(1, 18871088), (2, 9435544), (4, 4717772), (8, 2358886), (16, 1179443), (17, 1110064), (34, 555032), (68, 277516), (136, 138758), (272, 69379)]