218017443

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{220889}}^1$

素因数の和:220946

約数の個数: 16

約数和(自身を含む): 339287040

約数和(自身を除く): 121269597

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 220889, 662667, 1546223, 4638669, 10381783, 31145349, 72672481, 218017443]

約数ペア:

[(1, 218017443), (3, 72672481), (7, 31145349), (21, 10381783), (47, 4638669), (141, 1546223), (329, 662667), (987, 220889)]