209721889

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{1987}}^1$

素因数の和:2376

約数の個数: 16

約数和(自身を含む): 236460672

約数和(自身を除く): 26738783

約数列:

[1, 13, 23, 299, 353, 1987, 4589, 8119, 25831, 45701, 105547, 594113, 701411, 9118343, 16132453, 209721889]

約数ペア:

[(1, 209721889), (13, 16132453), (23, 9118343), (299, 701411), (353, 594113), (1987, 105547), (4589, 45701), (8119, 25831)]