19726564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{34487}}^1$

素因数の和:34515

約数の個数: 24

約数和(自身を含む): 40557888

約数和(自身を除く): 20831324

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 34487, 68974, 137948, 379357, 448331, 758714, 896662, 1517428, 1793324, 4931641, 9863282, 19726564]

約数ペア:

[(1, 19726564), (2, 9863282), (4, 4931641), (11, 1793324), (13, 1517428), (22, 896662), (26, 758714), (44, 448331), (52, 379357), (143, 137948), (286, 68974), (572, 34487)]