81109105

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1103}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 122093568

約数和(自身を除く): 40984463

約数列:

[1, 5, 7, 11, 35, 55, 77, 191, 385, 955, 1103, 1337, 2101, 5515, 6685, 7721, 10505, 12133, 14707, 38605, 60665, 73535, 84931, 210673, 424655, 1053365, 1474711, 2317403, 7373555, 11587015, 16221821, 81109105]

約数ペア:

[(1, 81109105), (5, 16221821), (7, 11587015), (11, 7373555), (35, 2317403), (55, 1474711), (77, 1053365), (191, 424655), (385, 210673), (955, 84931), (1103, 73535), (1337, 60665), (2101, 38605), (5515, 14707), (6685, 12133), (7721, 10505)]