12721665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{77101}}^1$

素因数の和:77120

約数の個数: 16

約数和(自身を含む): 22205376

約数和(自身を除く): 9483711

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 77101, 231303, 385505, 848111, 1156515, 2544333, 4240555, 12721665]

約数ペア:

[(1, 12721665), (3, 4240555), (5, 2544333), (11, 1156515), (15, 848111), (33, 385505), (55, 231303), (165, 77101)]