12981285

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 24261120

約数和(自身を除く): 11279835

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 239, 255, 355, 639, 717, 765, 1065, 1195, 1207, 2151, 3195, 3585, 3621, 4063, 6035, 10755, 10863, 12189, 16969, 18105, 20315, 36567, 50907, 54315, 60945, 84845, 152721, 182835, 254535, 288473, 763605, 865419, 1442365, 2596257, 4327095, 12981285]

約数ペア:

[(1, 12981285), (3, 4327095), (5, 2596257), (9, 1442365), (15, 865419), (17, 763605), (45, 288473), (51, 254535), (71, 182835), (85, 152721), (153, 84845), (213, 60945), (239, 54315), (255, 50907), (355, 36567), (639, 20315), (717, 18105), (765, 16969), (1065, 12189), (1195, 10863), (1207, 10755), (2151, 6035), (3195, 4063), (3585, 3621)]