21269470

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1033}}^1$

素因数の和:1140

約数の個数: 32

約数和(自身を含む): 40201920

約数和(自身を除く): 18932450

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 1033, 2059, 2066, 4118, 5165, 10295, 10330, 20590, 29957, 59914, 73343, 146686, 149785, 299570, 366715, 733430, 2126947, 4253894, 10634735, 21269470]

約数ペア:

[(1, 21269470), (2, 10634735), (5, 4253894), (10, 2126947), (29, 733430), (58, 366715), (71, 299570), (142, 149785), (145, 146686), (290, 73343), (355, 59914), (710, 29957), (1033, 20590), (2059, 10330), (2066, 10295), (4118, 5165)]