21542456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207139}}^1$

素因数の和:207158

約数の個数: 16

約数和(自身を含む): 43499400

約数和(自身を除く): 21956944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207139, 414278, 828556, 1657112, 2692807, 5385614, 10771228, 21542456]

約数ペア:

[(1, 21542456), (2, 10771228), (4, 5385614), (8, 2692807), (13, 1657112), (26, 828556), (52, 414278), (104, 207139)]