19681324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1217}}^1$

素因数の和:1545

約数の個数: 24

約数和(自身を含む): 37241568

約数和(自身を除く): 17560244

約数列:

[1, 2, 4, 13, 26, 52, 311, 622, 1217, 1244, 2434, 4043, 4868, 8086, 15821, 16172, 31642, 63284, 378487, 756974, 1513948, 4920331, 9840662, 19681324]

約数ペア:

[(1, 19681324), (2, 9840662), (4, 4920331), (13, 1513948), (26, 756974), (52, 378487), (311, 63284), (622, 31642), (1217, 16172), (1244, 15821), (2434, 8086), (4043, 4868)]