21866290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{75401}}^1$

素因数の和:75437

約数の個数: 16

約数和(自身を含む): 40717080

約数和(自身を除く): 18850790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 75401, 150802, 377005, 754010, 2186629, 4373258, 10933145, 21866290]

約数ペア:

[(1, 21866290), (2, 10933145), (5, 4373258), (10, 2186629), (29, 754010), (58, 377005), (145, 150802), (290, 75401)]