220176747

素因数分解:

$3^2\times 7^2\times {\mathrm{499267}}^1$

素因数の和:499287

約数の個数: 18

約数和(自身を含む): 369957588

約数和(自身を除く): 149780841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 499267, 1497801, 3494869, 4493403, 10484607, 24464083, 31453821, 73392249, 220176747]

約数ペア:

[(1, 220176747), (3, 73392249), (7, 31453821), (9, 24464083), (21, 10484607), (49, 4493403), (63, 3494869), (147, 1497801), (441, 499267)]