266904421

素因数分解:

$7^3\times {\mathrm{37}}^1\times {\mathrm{21031}}^1$

素因数の和:21089

約数の個数: 16

約数和(自身を含む): 319686400

約数和(自身を除く): 52781979

約数列:

[1, 7, 37, 49, 259, 343, 1813, 12691, 21031, 147217, 778147, 1030519, 5447029, 7213633, 38129203, 266904421]

約数ペア:

[(1, 266904421), (7, 38129203), (37, 7213633), (49, 5447029), (259, 1030519), (343, 778147), (1813, 147217), (12691, 21031)]