20204271

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 30420000

約数和(自身を除く): 10215729

約数列:

[1, 3, 9, 29, 87, 199, 261, 389, 597, 1167, 1791, 3501, 5771, 11281, 17313, 33843, 51939, 77411, 101529, 232233, 696699, 2244919, 6734757, 20204271]

約数ペア:

[(1, 20204271), (3, 6734757), (9, 2244919), (29, 696699), (87, 232233), (199, 101529), (261, 77411), (389, 51939), (597, 33843), (1167, 17313), (1791, 11281), (3501, 5771)]