17221405

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 21168000

約数和(自身を除く): 3946595

約数列:

[1, 5, 71, 139, 349, 355, 695, 1745, 9869, 24779, 48511, 49345, 123895, 242555, 3444281, 17221405]

約数ペア:

[(1, 17221405), (5, 3444281), (71, 242555), (139, 123895), (349, 49345), (355, 48511), (695, 24779), (1745, 9869)]