21299495

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26459}}^1$

素因数の和:26494

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9182425

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 26459, 132295, 185213, 608557, 926065, 3042785, 4259899, 21299495]

約数ペア:

[(1, 21299495), (5, 4259899), (7, 3042785), (23, 926065), (35, 608557), (115, 185213), (161, 132295), (805, 26459)]