19957612

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 35703360

約数和(自身を除く): 15745748

約数列:

[1, 2, 4, 79, 137, 158, 274, 316, 461, 548, 922, 1844, 10823, 21646, 36419, 43292, 63157, 72838, 126314, 145676, 252628, 4989403, 9978806, 19957612]

約数ペア:

[(1, 19957612), (2, 9978806), (4, 4989403), (79, 252628), (137, 145676), (158, 126314), (274, 72838), (316, 63157), (461, 43292), (548, 36419), (922, 21646), (1844, 10823)]