131728023

素因数分解:

$3^2\times 7^2\times {\mathrm{281}}^1\times {\mathrm{1063}}^1$

素因数の和:1364

約数の個数: 36

約数和(自身を含む): 222335568

約数和(自身を除く): 90607545

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 281, 441, 843, 1063, 1967, 2529, 3189, 5901, 7441, 9567, 13769, 17703, 22323, 41307, 52087, 66969, 123921, 156261, 298703, 468783, 896109, 2090921, 2688327, 6272763, 14636447, 18818289, 43909341, 131728023]

約数ペア:

[(1, 131728023), (3, 43909341), (7, 18818289), (9, 14636447), (21, 6272763), (49, 2688327), (63, 2090921), (147, 896109), (281, 468783), (441, 298703), (843, 156261), (1063, 123921), (1967, 66969), (2529, 52087), (3189, 41307), (5901, 22323), (7441, 17703), (9567, 13769)]