557942721

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{2339}}^1$

素因数の和:2693

約数の個数: 32

約数和(自身を含む): 876395520

約数和(自身を除く): 318452799

約数列:

[1, 3, 7, 21, 37, 111, 259, 307, 777, 921, 2149, 2339, 6447, 7017, 11359, 16373, 34077, 49119, 79513, 86543, 238539, 259629, 605801, 718073, 1817403, 2154219, 5026511, 15079533, 26568701, 79706103, 185980907, 557942721]

約数ペア:

[(1, 557942721), (3, 185980907), (7, 79706103), (21, 26568701), (37, 15079533), (111, 5026511), (259, 2154219), (307, 1817403), (777, 718073), (921, 605801), (2149, 259629), (2339, 238539), (6447, 86543), (7017, 79513), (11359, 49119), (16373, 34077)]