18864935

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{463}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 23552640

約数和(自身を除く): 4687705

約数列:

[1, 5, 29, 145, 281, 463, 1405, 2315, 8149, 13427, 40745, 67135, 130103, 650515, 3772987, 18864935]

約数ペア:

[(1, 18864935), (5, 3772987), (29, 650515), (145, 130103), (281, 67135), (463, 40745), (1405, 13427), (2315, 8149)]