209529021

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^2\times {\mathrm{571}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 304528224

約数和(自身を除く): 94999203

約数列:

[1, 3, 13, 39, 97, 291, 571, 1261, 1713, 3783, 7423, 9409, 22269, 28227, 55387, 122317, 166161, 366951, 720031, 2160093, 5372539, 16117617, 69843007, 209529021]

約数ペア:

[(1, 209529021), (3, 69843007), (13, 16117617), (39, 5372539), (97, 2160093), (291, 720031), (571, 366951), (1261, 166161), (1713, 122317), (3783, 55387), (7423, 28227), (9409, 22269)]