20679255

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2927}}^1$

素因数の和:3095

約数の個数: 24

約数和(自身を含む): 36084672

約数和(自身を除く): 15405417

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 2355, 2927, 7065, 8781, 14635, 26343, 43905, 131715, 459539, 1378617, 2297695, 4135851, 6893085, 20679255]

約数ペア:

[(1, 20679255), (3, 6893085), (5, 4135851), (9, 2297695), (15, 1378617), (45, 459539), (157, 131715), (471, 43905), (785, 26343), (1413, 14635), (2355, 8781), (2927, 7065)]