21508539

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{9041}}^1$

素因数の和:9118

約数の個数: 16

約数和(自身を含む): 31393824

約数和(自身を除く): 9885285

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 9041, 27123, 117533, 352599, 551501, 1654503, 7169513, 21508539]

約数ペア:

[(1, 21508539), (3, 7169513), (13, 1654503), (39, 551501), (61, 352599), (183, 117533), (793, 27123), (2379, 9041)]