20049825

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6217}}^1$

素因数の和:6273

約数の個数: 24

約数和(自身を含む): 33925408

約数和(自身を除く): 13875583

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6217, 18651, 31085, 93255, 155425, 267331, 466275, 801993, 1336655, 4009965, 6683275, 20049825]

約数ペア:

[(1, 20049825), (3, 6683275), (5, 4009965), (15, 1336655), (25, 801993), (43, 466275), (75, 267331), (129, 155425), (215, 93255), (645, 31085), (1075, 18651), (3225, 6217)]