19999474

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{2267}}^1$

素因数の和:2681

約数の個数: 16

約数和(自身を含む): 32822496

約数和(自身を除く): 12823022

約数列:

[1, 2, 11, 22, 401, 802, 2267, 4411, 4534, 8822, 24937, 49874, 909067, 1818134, 9999737, 19999474]

約数ペア:

[(1, 19999474), (2, 9999737), (11, 1818134), (22, 909067), (401, 49874), (802, 24937), (2267, 8822), (4411, 4534)]