20215899

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{2521}}^1$

素因数の和:2550

約数の個数: 28

約数和(自身を含む): 33078552

約数和(自身を除く): 12862653

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 729, 891, 2521, 2673, 7563, 8019, 22689, 27731, 68067, 83193, 204201, 249579, 612603, 748737, 1837809, 2246211, 6738633, 20215899]

約数ペア:

[(1, 20215899), (3, 6738633), (9, 2246211), (11, 1837809), (27, 748737), (33, 612603), (81, 249579), (99, 204201), (243, 83193), (297, 68067), (729, 27731), (891, 22689), (2521, 8019), (2673, 7563)]