18996870529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{378869}}^1$

素因数の和:378937

約数の個数: 32

約数和(自身を含む): 25460064000

約数和(自身を除く): 6463193471

約数列:

[1, 7, 13, 19, 29, 91, 133, 203, 247, 377, 551, 1729, 2639, 3857, 7163, 50141, 378869, 2652083, 4925297, 7198511, 10987201, 34477079, 50389577, 76910407, 93580643, 142833613, 208756819, 655064501, 999835291, 1461297733, 2713838647, 18996870529]

約数ペア:

[(1, 18996870529), (7, 2713838647), (13, 1461297733), (19, 999835291), (29, 655064501), (91, 208756819), (133, 142833613), (203, 93580643), (247, 76910407), (377, 50389577), (551, 34477079), (1729, 10987201), (2639, 7198511), (3857, 4925297), (7163, 2652083), (50141, 378869)]