81416907

素因数分解:

$3^6\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 84

約数和(自身を含む): 146531952

約数和(自身を除く): 65115045

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 71, 81, 99, 117, 121, 143, 213, 243, 297, 351, 363, 429, 639, 729, 781, 891, 923, 1053, 1089, 1287, 1573, 1917, 2343, 2673, 2769, 3159, 3267, 3861, 4719, 5751, 7029, 8019, 8307, 8591, 9477, 9801, 10153, 11583, 14157, 17253, 21087, 24921, 25773, 29403, 30459, 34749, 42471, 51759, 63261, 74763, 77319, 88209, 91377, 104247, 111683, 127413, 189783, 224289, 231957, 274131, 335049, 382239, 569349, 672867, 695871, 822393, 1005147, 1146717, 2087613, 2467179, 3015441, 6262839, 7401537, 9046323, 27138969, 81416907]

約数ペア:

[(1, 81416907), (3, 27138969), (9, 9046323), (11, 7401537), (13, 6262839), (27, 3015441), (33, 2467179), (39, 2087613), (71, 1146717), (81, 1005147), (99, 822393), (117, 695871), (121, 672867), (143, 569349), (213, 382239), (243, 335049), (297, 274131), (351, 231957), (363, 224289), (429, 189783), (639, 127413), (729, 111683), (781, 104247), (891, 91377), (923, 88209), (1053, 77319), (1089, 74763), (1287, 63261), (1573, 51759), (1917, 42471), (2343, 34749), (2673, 30459), (2769, 29403), (3159, 25773), (3267, 24921), (3861, 21087), (4719, 17253), (5751, 14157), (7029, 11583), (8019, 10153), (8307, 9801), (8591, 9477)]