20117457

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 10848303

約数列:

[1, 3, 9, 27, 47, 83, 141, 191, 249, 423, 573, 747, 1269, 1719, 2241, 3901, 5157, 8977, 11703, 15853, 26931, 35109, 47559, 80793, 105327, 142677, 242379, 428031, 745091, 2235273, 6705819, 20117457]

約数ペア:

[(1, 20117457), (3, 6705819), (9, 2235273), (27, 745091), (47, 428031), (83, 242379), (141, 142677), (191, 105327), (249, 80793), (423, 47559), (573, 35109), (747, 26931), (1269, 15853), (1719, 11703), (2241, 8977), (3901, 5157)]