21777535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4241}}^1$

素因数の和:4338

約数の個数: 16

約数和(自身を含む): 28506240

約数和(自身を除く): 6728705

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4241, 5135, 21205, 55133, 275665, 335039, 1675195, 4355507, 21777535]

約数ペア:

[(1, 21777535), (5, 4355507), (13, 1675195), (65, 335039), (79, 275665), (395, 55133), (1027, 21205), (4241, 5135)]