21412655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16927}}^1$

素因数の和:16966

約数の個数: 16

約数和(自身を含む): 29251584

約数和(自身を除く): 7838929

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16927, 84635, 186197, 389321, 930985, 1946605, 4282531, 21412655]

約数ペア:

[(1, 21412655), (5, 4282531), (11, 1946605), (23, 930985), (55, 389321), (115, 186197), (253, 84635), (1265, 16927)]