21279665

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2069}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 29733480

約数和(自身を除く): 8453815

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2057, 2069, 10285, 10345, 22759, 35173, 113795, 175865, 250349, 386903, 1251745, 1934515, 4255933, 21279665]

約数ペア:

[(1, 21279665), (5, 4255933), (11, 1934515), (17, 1251745), (55, 386903), (85, 250349), (121, 175865), (187, 113795), (605, 35173), (935, 22759), (2057, 10345), (2069, 10285)]