21515572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4649}}^1$

素因数の和:4755

約数の個数: 24

約数和(自身を含む): 41013000

約数和(自身を除く): 19497428

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 4649, 9298, 18596, 60437, 120874, 241748, 413761, 827522, 1655044, 5378893, 10757786, 21515572]

約数ペア:

[(1, 21515572), (2, 10757786), (4, 5378893), (13, 1655044), (26, 827522), (52, 413761), (89, 241748), (178, 120874), (356, 60437), (1157, 18596), (2314, 9298), (4628, 4649)]