21426922

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2393}}^1$

素因数の和:2454

約数の個数: 24

約数和(自身を含む): 36297828

約数和(自身を除く): 14870906

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2393, 4477, 4786, 8954, 26323, 52646, 88541, 177082, 289553, 579106, 973951, 1947902, 10713461, 21426922]

約数ペア:

[(1, 21426922), (2, 10713461), (11, 1947902), (22, 973951), (37, 579106), (74, 289553), (121, 177082), (242, 88541), (407, 52646), (814, 26323), (2393, 8954), (4477, 4786)]