21016578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{887}}^1$

素因数の和:1262

約数の個数: 32

約数和(自身を含む): 46033920

約数和(自身を除く): 25017342

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 359, 718, 887, 1077, 1774, 2154, 2661, 3949, 5322, 7898, 9757, 11847, 19514, 23694, 29271, 58542, 318433, 636866, 955299, 1910598, 3502763, 7005526, 10508289, 21016578]

約数ペア:

[(1, 21016578), (2, 10508289), (3, 7005526), (6, 3502763), (11, 1910598), (22, 955299), (33, 636866), (66, 318433), (359, 58542), (718, 29271), (887, 23694), (1077, 19514), (1774, 11847), (2154, 9757), (2661, 7898), (3949, 5322)]