20593455

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 34572288

約数和(自身を除く): 13978833

約数列:

[1, 3, 5, 15, 31, 67, 93, 155, 201, 335, 465, 661, 1005, 1983, 2077, 3305, 6231, 9915, 10385, 20491, 31155, 44287, 61473, 102455, 132861, 221435, 307365, 664305, 1372897, 4118691, 6864485, 20593455]

約数ペア:

[(1, 20593455), (3, 6864485), (5, 4118691), (15, 1372897), (31, 664305), (67, 307365), (93, 221435), (155, 132861), (201, 102455), (335, 61473), (465, 44287), (661, 31155), (1005, 20491), (1983, 10385), (2077, 9915), (3305, 6231)]