21053439

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23629}}^1$

素因数の和:23652

約数の個数: 20

約数和(自身を含む): 34310760

約数和(自身を除く): 13257321

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 23629, 70887, 212661, 259919, 637983, 779757, 1913949, 2339271, 7017813, 21053439]

約数ペア:

[(1, 21053439), (3, 7017813), (9, 2339271), (11, 1913949), (27, 779757), (33, 637983), (81, 259919), (99, 212661), (297, 70887), (891, 23629)]