21258532

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{859}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 39009600

約数和(自身を除く): 17751068

約数列:

[1, 2, 4, 23, 46, 92, 269, 538, 859, 1076, 1718, 3436, 6187, 12374, 19757, 24748, 39514, 79028, 231071, 462142, 924284, 5314633, 10629266, 21258532]

約数ペア:

[(1, 21258532), (2, 10629266), (4, 5314633), (23, 924284), (46, 462142), (92, 231071), (269, 79028), (538, 39514), (859, 24748), (1076, 19757), (1718, 12374), (3436, 6187)]