77912121

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{509}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 122791680

約数和(自身を除く): 44879559

約数列:

[1, 3, 7, 21, 37, 111, 197, 259, 509, 591, 777, 1379, 1527, 3563, 4137, 7289, 10689, 18833, 21867, 51023, 56499, 100273, 131831, 153069, 300819, 395493, 701911, 2105733, 3710101, 11130303, 25970707, 77912121]

約数ペア:

[(1, 77912121), (3, 25970707), (7, 11130303), (21, 3710101), (37, 2105733), (111, 701911), (197, 395493), (259, 300819), (509, 153069), (591, 131831), (777, 100273), (1379, 56499), (1527, 51023), (3563, 21867), (4137, 18833), (7289, 10689)]