121520709

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 200724480

約数和(自身を除く): 79203771

約数列:

[1, 3, 9, 17, 27, 43, 47, 51, 129, 131, 141, 153, 387, 393, 423, 459, 731, 799, 1161, 1179, 1269, 2021, 2193, 2227, 2397, 3537, 5633, 6063, 6157, 6579, 6681, 7191, 16899, 18189, 18471, 19737, 20043, 21573, 34357, 50697, 54567, 55413, 60129, 95761, 103071, 104669, 152091, 166239, 264751, 287283, 309213, 314007, 794253, 861849, 927639, 942021, 2382759, 2585547, 2826063, 4500767, 7148277, 13502301, 40506903, 121520709]

約数ペア:

[(1, 121520709), (3, 40506903), (9, 13502301), (17, 7148277), (27, 4500767), (43, 2826063), (47, 2585547), (51, 2382759), (129, 942021), (131, 927639), (141, 861849), (153, 794253), (387, 314007), (393, 309213), (423, 287283), (459, 264751), (731, 166239), (799, 152091), (1161, 104669), (1179, 103071), (1269, 95761), (2021, 60129), (2193, 55413), (2227, 54567), (2397, 50697), (3537, 34357), (5633, 21573), (6063, 20043), (6157, 19737), (6579, 18471), (6681, 18189), (7191, 16899)]