20353221

素因数分解:

$3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{953}}^1$

素因数の和:1082

約数の個数: 32

約数和(自身を含む): 34801920

約数和(自身を除く): 14448699

約数列:

[1, 3, 7, 9, 21, 27, 63, 113, 189, 339, 791, 953, 1017, 2373, 2859, 3051, 6671, 7119, 8577, 20013, 21357, 25731, 60039, 107689, 180117, 323067, 753823, 969201, 2261469, 2907603, 6784407, 20353221]

約数ペア:

[(1, 20353221), (3, 6784407), (7, 2907603), (9, 2261469), (21, 969201), (27, 753823), (63, 323067), (113, 180117), (189, 107689), (339, 60039), (791, 25731), (953, 21357), (1017, 20013), (2373, 8577), (2859, 7119), (3051, 6671)]