21431828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{4729}}^1$

素因数の和:4847

約数の個数: 24

約数和(自身を含む): 41321280

約数和(自身を除く): 19889452

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 1133, 2266, 4532, 4729, 9458, 18916, 52019, 104038, 208076, 487087, 974174, 1948348, 5357957, 10715914, 21431828]

約数ペア:

[(1, 21431828), (2, 10715914), (4, 5357957), (11, 1948348), (22, 974174), (44, 487087), (103, 208076), (206, 104038), (412, 52019), (1133, 18916), (2266, 9458), (4532, 4729)]