209212498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{23251}}^1$

素因数の和:23673

約数の個数: 16

約数和(自身を含む): 343199520

約数和(自身を除く): 133987022

約数列:

[1, 2, 11, 22, 409, 818, 4499, 8998, 23251, 46502, 255761, 511522, 9509659, 19019318, 104606249, 209212498]

約数ペア:

[(1, 209212498), (2, 104606249), (11, 19019318), (22, 9509659), (409, 511522), (818, 255761), (4499, 46502), (8998, 23251)]