21931505

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1229}}^1$

素因数の和:1360

約数の個数: 16

約数和(自身を含む): 27276480

約数和(自身を除く): 5344975

約数列:

[1, 5, 43, 83, 215, 415, 1229, 3569, 6145, 17845, 52847, 102007, 264235, 510035, 4386301, 21931505]

約数ペア:

[(1, 21931505), (5, 4386301), (43, 510035), (83, 264235), (215, 102007), (415, 52847), (1229, 17845), (3569, 6145)]