21585488

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12377}}^1$

素因数の和:12494

約数の個数: 20

約数和(自身を含む): 42208980

約数和(自身を除く): 20623492

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12377, 24754, 49508, 99016, 198032, 1349093, 2698186, 5396372, 10792744, 21585488]

約数ペア:

[(1, 21585488), (2, 10792744), (4, 5396372), (8, 2698186), (16, 1349093), (109, 198032), (218, 99016), (436, 49508), (872, 24754), (1744, 12377)]