217079865

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{463}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 406241280

約数和(自身を除く): 189161415

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 151, 207, 345, 453, 463, 621, 755, 1035, 1359, 1389, 2265, 2315, 3105, 3473, 4077, 4167, 6795, 6945, 10419, 10649, 12501, 17365, 20385, 20835, 31257, 31947, 52095, 53245, 62505, 69913, 93771, 95841, 156285, 159735, 209739, 287523, 349565, 468855, 479205, 629217, 1048695, 1437615, 1607999, 1887651, 3146085, 4823997, 8039995, 9438255, 14471991, 24119985, 43415973, 72359955, 217079865]

約数ペア:

[(1, 217079865), (3, 72359955), (5, 43415973), (9, 24119985), (15, 14471991), (23, 9438255), (27, 8039995), (45, 4823997), (69, 3146085), (115, 1887651), (135, 1607999), (151, 1437615), (207, 1048695), (345, 629217), (453, 479205), (463, 468855), (621, 349565), (755, 287523), (1035, 209739), (1359, 159735), (1389, 156285), (2265, 95841), (2315, 93771), (3105, 69913), (3473, 62505), (4077, 53245), (4167, 52095), (6795, 31947), (6945, 31257), (10419, 20835), (10649, 20385), (12501, 17365)]