21880149

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{571}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 29899584

約数和(自身を除く): 8019435

約数列:

[1, 3, 53, 159, 241, 571, 723, 1713, 12773, 30263, 38319, 90789, 137611, 412833, 7293383, 21880149]

約数ペア:

[(1, 21880149), (3, 7293383), (53, 412833), (159, 137611), (241, 90789), (571, 38319), (723, 30263), (1713, 12773)]