218641665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{7321}}^1$

素因数の和:7521

約数の個数: 32

約数和(自身を含む): 383789952

約数和(自身を除く): 165148287

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 181, 543, 905, 1991, 2715, 5973, 7321, 9955, 21963, 29865, 36605, 80531, 109815, 241593, 402655, 1207965, 1325101, 3975303, 6625505, 14576111, 19876515, 43728333, 72880555, 218641665]

約数ペア:

[(1, 218641665), (3, 72880555), (5, 43728333), (11, 19876515), (15, 14576111), (33, 6625505), (55, 3975303), (165, 1325101), (181, 1207965), (543, 402655), (905, 241593), (1991, 109815), (2715, 80531), (5973, 36605), (7321, 29865), (9955, 21963)]