20768355

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10733}}^1$

素因数の和:10787

約数の個数: 24

約数和(自身を含む): 36839088

約数和(自身を除く): 16070733

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10733, 32199, 53665, 96597, 160995, 461519, 482985, 1384557, 2307595, 4153671, 6922785, 20768355]

約数ペア:

[(1, 20768355), (3, 6922785), (5, 4153671), (9, 2307595), (15, 1384557), (43, 482985), (45, 461519), (129, 160995), (215, 96597), (387, 53665), (645, 32199), (1935, 10733)]