19920172

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{311}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 35642880

約数和(自身を除く): 15722708

約数列:

[1, 2, 4, 67, 134, 239, 268, 311, 478, 622, 956, 1244, 16013, 20837, 32026, 41674, 64052, 74329, 83348, 148658, 297316, 4980043, 9960086, 19920172]

約数ペア:

[(1, 19920172), (2, 9960086), (4, 4980043), (67, 297316), (134, 148658), (239, 83348), (268, 74329), (311, 64052), (478, 41674), (622, 32026), (956, 20837), (1244, 16013)]