19886009

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2357}}^1$

素因数の和:2440

約数の個数: 16

約数和(自身を含む): 23768640

約数和(自身を除く): 3882631

約数列:

[1, 11, 13, 59, 143, 649, 767, 2357, 8437, 25927, 30641, 139063, 337051, 1529693, 1807819, 19886009]

約数ペア:

[(1, 19886009), (11, 1807819), (13, 1529693), (59, 337051), (143, 139063), (649, 30641), (767, 25927), (2357, 8437)]