21008750

素因数分解:

$2^1\times 5^4\times 7^5$

素因数の和:57

約数の個数: 60

約数和(自身を含む): 45941544

約数和(自身を除く): 24932794

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 343, 350, 490, 625, 686, 875, 1225, 1250, 1715, 1750, 2401, 2450, 3430, 4375, 4802, 6125, 8575, 8750, 12005, 12250, 16807, 17150, 24010, 30625, 33614, 42875, 60025, 61250, 84035, 85750, 120050, 168070, 214375, 300125, 420175, 428750, 600250, 840350, 1500625, 2100875, 3001250, 4201750, 10504375, 21008750]

約数ペア:

[(1, 21008750), (2, 10504375), (5, 4201750), (7, 3001250), (10, 2100875), (14, 1500625), (25, 840350), (35, 600250), (49, 428750), (50, 420175), (70, 300125), (98, 214375), (125, 168070), (175, 120050), (245, 85750), (250, 84035), (343, 61250), (350, 60025), (490, 42875), (625, 33614), (686, 30625), (875, 24010), (1225, 17150), (1250, 16807), (1715, 12250), (1750, 12005), (2401, 8750), (2450, 8575), (3430, 6125), (4375, 4802)]