20942792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{577}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 42483000

約数和(自身を除く): 21540208

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 349, 577, 698, 1154, 1396, 2308, 2792, 4537, 4616, 7501, 9074, 15002, 18148, 30004, 36296, 60008, 201373, 402746, 805492, 1610984, 2617849, 5235698, 10471396, 20942792]

約数ペア:

[(1, 20942792), (2, 10471396), (4, 5235698), (8, 2617849), (13, 1610984), (26, 805492), (52, 402746), (104, 201373), (349, 60008), (577, 36296), (698, 30004), (1154, 18148), (1396, 15002), (2308, 9074), (2792, 7501), (4537, 4616)]