20922895

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 9766385

約数列:

[1, 5, 7, 19, 35, 73, 95, 133, 365, 431, 511, 665, 1387, 2155, 2555, 3017, 6935, 8189, 9709, 15085, 31463, 40945, 48545, 57323, 157315, 220241, 286615, 597797, 1101205, 2988985, 4184579, 20922895]

約数ペア:

[(1, 20922895), (5, 4184579), (7, 2988985), (19, 1101205), (35, 597797), (73, 286615), (95, 220241), (133, 157315), (365, 57323), (431, 48545), (511, 40945), (665, 31463), (1387, 15085), (2155, 9709), (2555, 8189), (3017, 6935)]