221406723

素因数分解:

$3^3\times {\mathrm{419}}^1\times {\mathrm{19571}}^1$

素因数の和:19999

約数の個数: 16

約数和(自身を含む): 328809600

約数和(自身を除く): 107402877

約数列:

[1, 3, 9, 27, 419, 1257, 3771, 11313, 19571, 58713, 176139, 528417, 8200249, 24600747, 73802241, 221406723]

約数ペア:

[(1, 221406723), (3, 73802241), (9, 24600747), (27, 8200249), (419, 528417), (1257, 176139), (3771, 58713), (11313, 19571)]