21573904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122579}}^1$

素因数の和:122598

約数の個数: 20

約数和(自身を含む): 45599760

約数和(自身を除く): 24025856

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122579, 245158, 490316, 980632, 1348369, 1961264, 2696738, 5393476, 10786952, 21573904]

約数ペア:

[(1, 21573904), (2, 10786952), (4, 5393476), (8, 2696738), (11, 1961264), (16, 1348369), (22, 980632), (44, 490316), (88, 245158), (176, 122579)]