22155905

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5060095

約数列:

[1, 5, 71, 139, 355, 449, 695, 2245, 9869, 31879, 49345, 62411, 159395, 312055, 4431181, 22155905]

約数ペア:

[(1, 22155905), (5, 4431181), (71, 312055), (139, 159395), (355, 62411), (449, 49345), (695, 31879), (2245, 9869)]