21878684

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2417}}^1$

素因数の和:2525

約数の個数: 24

約数和(自身を含む): 40080768

約数和(自身を除く): 18202084

約数列:

[1, 2, 4, 31, 62, 73, 124, 146, 292, 2263, 2417, 4526, 4834, 9052, 9668, 74927, 149854, 176441, 299708, 352882, 705764, 5469671, 10939342, 21878684]

約数ペア:

[(1, 21878684), (2, 10939342), (4, 5469671), (31, 705764), (62, 352882), (73, 299708), (124, 176441), (146, 149854), (292, 74927), (2263, 9668), (2417, 9052), (4526, 4834)]