21473870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17747}}^1$

素因数の和:17776

約数の個数: 24

約数和(自身を含む): 42488712

約数和(自身を除く): 21014842

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17747, 35494, 88735, 177470, 195217, 390434, 976085, 1952170, 2147387, 4294774, 10736935, 21473870]

約数ペア:

[(1, 21473870), (2, 10736935), (5, 4294774), (10, 2147387), (11, 1952170), (22, 976085), (55, 390434), (110, 195217), (121, 177470), (242, 88735), (605, 35494), (1210, 17747)]