20208279

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{937}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 33617920

約数和(自身を除く): 13409641

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 237, 273, 553, 937, 1027, 1659, 2811, 3081, 6559, 7189, 12181, 19677, 21567, 36543, 74023, 85267, 222069, 255801, 518161, 962299, 1554483, 2886897, 6736093, 20208279]

約数ペア:

[(1, 20208279), (3, 6736093), (7, 2886897), (13, 1554483), (21, 962299), (39, 518161), (79, 255801), (91, 222069), (237, 85267), (273, 74023), (553, 36543), (937, 21567), (1027, 19677), (1659, 12181), (2811, 7189), (3081, 6559)]