20858264

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2153}}^1$

素因数の和:2339

約数の個数: 32

約数和(自身を含む): 44975520

約数和(自身を除く): 24117256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2153, 2422, 4306, 4844, 8612, 9688, 15071, 17224, 30142, 60284, 120568, 372469, 744938, 1489876, 2607283, 2979752, 5214566, 10429132, 20858264]

約数ペア:

[(1, 20858264), (2, 10429132), (4, 5214566), (7, 2979752), (8, 2607283), (14, 1489876), (28, 744938), (56, 372469), (173, 120568), (346, 60284), (692, 30142), (1211, 17224), (1384, 15071), (2153, 9688), (2422, 8612), (4306, 4844)]