20315505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1187}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 37407744

約数和(自身を除く): 17092239

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 163, 489, 815, 1141, 1187, 2445, 3423, 3561, 5705, 5935, 8309, 17115, 17805, 24927, 41545, 124635, 193481, 580443, 967405, 1354367, 2902215, 4063101, 6771835, 20315505]

約数ペア:

[(1, 20315505), (3, 6771835), (5, 4063101), (7, 2902215), (15, 1354367), (21, 967405), (35, 580443), (105, 193481), (163, 124635), (489, 41545), (815, 24927), (1141, 17805), (1187, 17115), (2445, 8309), (3423, 5935), (3561, 5705)]