20458578

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{9941}}^1$

素因数の和:9967

約数の個数: 32

約数和(自身を含む): 47721600

約数和(自身を除く): 27263022

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 343, 686, 1029, 2058, 9941, 19882, 29823, 59646, 69587, 139174, 208761, 417522, 487109, 974218, 1461327, 2922654, 3409763, 6819526, 10229289, 20458578]

約数ペア:

[(1, 20458578), (2, 10229289), (3, 6819526), (6, 3409763), (7, 2922654), (14, 1461327), (21, 974218), (42, 487109), (49, 417522), (98, 208761), (147, 139174), (294, 69587), (343, 59646), (686, 29823), (1029, 19882), (2058, 9941)]