21678090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14747}}^1$

素因数の和:14771

約数の個数: 48

約数和(自身を含む): 60525792

約数和(自身を除く): 38847702

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14747, 29494, 44241, 73735, 88482, 103229, 147470, 206458, 221205, 309687, 442410, 516145, 619374, 722603, 1032290, 1445206, 1548435, 2167809, 3096870, 3613015, 4335618, 7226030, 10839045, 21678090]

約数ペア:

[(1, 21678090), (2, 10839045), (3, 7226030), (5, 4335618), (6, 3613015), (7, 3096870), (10, 2167809), (14, 1548435), (15, 1445206), (21, 1032290), (30, 722603), (35, 619374), (42, 516145), (49, 442410), (70, 309687), (98, 221205), (105, 206458), (147, 147470), (210, 103229), (245, 88482), (294, 73735), (490, 44241), (735, 29494), (1470, 14747)]