21581282

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{2789}}^1$

素因数の和:2917

約数の個数: 16

約数和(自身を含む): 33446520

約数和(自身を除く): 11865238

約数列:

[1, 2, 53, 73, 106, 146, 2789, 3869, 5578, 7738, 147817, 203597, 295634, 407194, 10790641, 21581282]

約数ペア:

[(1, 21581282), (2, 10790641), (53, 407194), (73, 295634), (106, 203597), (146, 147817), (2789, 7738), (3869, 5578)]