209213455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{1399}}^1\times {\mathrm{2719}}^1$

素因数の和:4134

約数の個数: 16

約数和(自身を含む): 274176000

約数和(自身を除く): 64962545

約数列:

[1, 5, 11, 55, 1399, 2719, 6995, 13595, 15389, 29909, 76945, 149545, 3803881, 19019405, 41842691, 209213455]

約数ペア:

[(1, 209213455), (5, 41842691), (11, 19019405), (55, 3803881), (1399, 149545), (2719, 76945), (6995, 29909), (13595, 15389)]