21089969109

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1\times {\mathrm{1609}}^1$

素因数の和:1992

約数の個数: 80

約数和(自身を含む): 35234115840

約数和(自身を除く): 14144146731

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 141, 297, 313, 423, 517, 891, 939, 1269, 1551, 1609, 2817, 3443, 3807, 4653, 4827, 8451, 10329, 13959, 14481, 14711, 17699, 25353, 30987, 41877, 43443, 44133, 53097, 75623, 92961, 130329, 132399, 159291, 161821, 226869, 278883, 397197, 477873, 485463, 503617, 680607, 831853, 1191591, 1433619, 1456389, 1510851, 2041821, 2495559, 4369167, 4532553, 5539787, 6125463, 7486677, 13107501, 13597659, 16619361, 22460031, 23669999, 40792977, 49858083, 67380093, 71009997, 149574249, 213029991, 260369989, 448722747, 639089973, 781109967, 1917269919, 2343329901, 7029989703, 21089969109]

約数ペア:

[(1, 21089969109), (3, 7029989703), (9, 2343329901), (11, 1917269919), (27, 781109967), (33, 639089973), (47, 448722747), (81, 260369989), (99, 213029991), (141, 149574249), (297, 71009997), (313, 67380093), (423, 49858083), (517, 40792977), (891, 23669999), (939, 22460031), (1269, 16619361), (1551, 13597659), (1609, 13107501), (2817, 7486677), (3443, 6125463), (3807, 5539787), (4653, 4532553), (4827, 4369167), (8451, 2495559), (10329, 2041821), (13959, 1510851), (14481, 1456389), (14711, 1433619), (17699, 1191591), (25353, 831853), (30987, 680607), (41877, 503617), (43443, 485463), (44133, 477873), (53097, 397197), (75623, 278883), (92961, 226869), (130329, 161821), (132399, 159291)]