21851408

素因数分解:

$2^4\times {\mathrm{269}}^1\times {\mathrm{5077}}^1$

素因数の和:5354

約数の個数: 20

約数和(自身を含む): 42502860

約数和(自身を除く): 20651452

約数列:

[1, 2, 4, 8, 16, 269, 538, 1076, 2152, 4304, 5077, 10154, 20308, 40616, 81232, 1365713, 2731426, 5462852, 10925704, 21851408]

約数ペア:

[(1, 21851408), (2, 10925704), (4, 5462852), (8, 2731426), (16, 1365713), (269, 81232), (538, 40616), (1076, 20308), (2152, 10154), (4304, 5077)]