217541521

素因数分解:

${\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{3797}}^1$

素因数の和:3920

約数の個数: 16

約数和(自身を含む): 236265984

約数和(自身を除く): 18724463

約数列:

[1, 23, 47, 53, 1081, 1219, 2491, 3797, 57293, 87331, 178459, 201241, 4104557, 4628543, 9458327, 217541521]

約数ペア:

[(1, 217541521), (23, 9458327), (47, 4628543), (53, 4104557), (1081, 201241), (1219, 178459), (2491, 87331), (3797, 57293)]