20215827

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1601}}^1$

素因数の和:1691

約数の個数: 24

約数和(自身を含む): 30989088

約数和(自身を除く): 10773261

約数列:

[1, 3, 9, 23, 61, 69, 183, 207, 549, 1403, 1601, 4209, 4803, 12627, 14409, 36823, 97661, 110469, 292983, 331407, 878949, 2246203, 6738609, 20215827]

約数ペア:

[(1, 20215827), (3, 6738609), (9, 2246203), (23, 878949), (61, 331407), (69, 292983), (183, 110469), (207, 97661), (549, 36823), (1403, 14409), (1601, 12627), (4209, 4803)]