20972276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21227}}^1$

素因数の和:21263

約数の個数: 24

約数和(自身を含む): 41606880

約数和(自身を除く): 20634604

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21227, 42454, 84908, 275951, 403313, 551902, 806626, 1103804, 1613252, 5243069, 10486138, 20972276]

約数ペア:

[(1, 20972276), (2, 10486138), (4, 5243069), (13, 1613252), (19, 1103804), (26, 806626), (38, 551902), (52, 403313), (76, 275951), (247, 84908), (494, 42454), (988, 21227)]