20117007561

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{953}}^1\times {\mathrm{24517}}^1$

素因数の和:25521

約数の個数: 32

約数和(自身を含む): 31436391168

約数和(自身を除く): 11319383607

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 953, 2859, 6671, 20013, 24517, 39073, 73551, 117219, 171619, 273511, 514857, 820533, 1005197, 3015591, 7036379, 21109137, 23364701, 70094103, 163552907, 490658721, 957952741, 2873858223, 6705669187, 20117007561]

約数ペア:

[(1, 20117007561), (3, 6705669187), (7, 2873858223), (21, 957952741), (41, 490658721), (123, 163552907), (287, 70094103), (861, 23364701), (953, 21109137), (2859, 7036379), (6671, 3015591), (20013, 1005197), (24517, 820533), (39073, 514857), (73551, 273511), (117219, 171619)]