212148747

素因数分解:

$3^3\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{691}}^1$

素因数の和:920

約数の個数: 32

約数和(自身を含む): 320866560

約数和(自身を除く): 108717813

約数列:

[1, 3, 9, 27, 83, 137, 249, 411, 691, 747, 1233, 2073, 2241, 3699, 6219, 11371, 18657, 34113, 57353, 94667, 102339, 172059, 284001, 307017, 516177, 852003, 1548531, 2556009, 7857361, 23572083, 70716249, 212148747]

約数ペア:

[(1, 212148747), (3, 70716249), (9, 23572083), (27, 7857361), (83, 2556009), (137, 1548531), (249, 852003), (411, 516177), (691, 307017), (747, 284001), (1233, 172059), (2073, 102339), (2241, 94667), (3699, 57353), (6219, 34113), (11371, 18657)]