31121217

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{431}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 46096128

約数和(自身を除く): 14974911

約数列:

[1, 3, 9, 71, 113, 213, 339, 431, 639, 1017, 1293, 3879, 8023, 24069, 30601, 48703, 72207, 91803, 146109, 275409, 438327, 3457913, 10373739, 31121217]

約数ペア:

[(1, 31121217), (3, 10373739), (9, 3457913), (71, 438327), (113, 275409), (213, 146109), (339, 91803), (431, 72207), (639, 48703), (1017, 30601), (1293, 24069), (3879, 8023)]