405291201

素因数分解:

$3^1\times 7^4\times {\mathrm{56267}}^1$

素因数の和:56298

約数の個数: 20

約数和(自身を含む): 630426672

約数和(自身を除く): 225135471

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 56267, 168801, 393869, 1181607, 2757083, 8271249, 19299581, 57898743, 135097067, 405291201]

約数ペア:

[(1, 405291201), (3, 135097067), (7, 57898743), (21, 19299581), (49, 8271249), (147, 2757083), (343, 1181607), (1029, 393869), (2401, 168801), (7203, 56267)]