21628420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5783}}^1$

素因数の和:5820

約数の個数: 48

約数和(自身を含む): 52472448

約数和(自身を除く): 30844028

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5783, 11566, 23132, 28915, 57830, 63613, 98311, 115660, 127226, 196622, 254452, 318065, 393244, 491555, 636130, 983110, 1081421, 1272260, 1966220, 2162842, 4325684, 5407105, 10814210, 21628420]

約数ペア:

[(1, 21628420), (2, 10814210), (4, 5407105), (5, 4325684), (10, 2162842), (11, 1966220), (17, 1272260), (20, 1081421), (22, 983110), (34, 636130), (44, 491555), (55, 393244), (68, 318065), (85, 254452), (110, 196622), (170, 127226), (187, 115660), (220, 98311), (340, 63613), (374, 57830), (748, 28915), (935, 23132), (1870, 11566), (3740, 5783)]