21262552

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{19121}}^1$

素因数の和:19266

約数の個数: 16

約数和(自身を含む): 40156200

約数和(自身を除く): 18893648

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 19121, 38242, 76484, 152968, 2657819, 5315638, 10631276, 21262552]

約数ペア:

[(1, 21262552), (2, 10631276), (4, 5315638), (8, 2657819), (139, 152968), (278, 76484), (556, 38242), (1112, 19121)]