21000768285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{911}}^1\times {\mathrm{219547}}^1$

素因数の和:220473

約数の個数: 32

約数和(自身を含む): 38443732992

約数和(自身を除く): 17442964707

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 911, 2733, 4555, 6377, 13665, 19131, 31885, 95655, 219547, 658641, 1097735, 1536829, 3293205, 4610487, 7684145, 23052435, 200007317, 600021951, 1000036585, 1400051219, 3000109755, 4200153657, 7000256095, 21000768285]

約数ペア:

[(1, 21000768285), (3, 7000256095), (5, 4200153657), (7, 3000109755), (15, 1400051219), (21, 1000036585), (35, 600021951), (105, 200007317), (911, 23052435), (2733, 7684145), (4555, 4610487), (6377, 3293205), (13665, 1536829), (19131, 1097735), (31885, 658641), (95655, 219547)]