81859965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2741}}^1$

素因数の和:2941

約数の個数: 32

約数和(自身を含む): 143724672

約数和(自身を除く): 61864707

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 181, 543, 905, 1991, 2715, 2741, 5973, 8223, 9955, 13705, 29865, 30151, 41115, 90453, 150755, 452265, 496121, 1488363, 2480605, 5457331, 7441815, 16371993, 27286655, 81859965]

約数ペア:

[(1, 81859965), (3, 27286655), (5, 16371993), (11, 7441815), (15, 5457331), (33, 2480605), (55, 1488363), (165, 496121), (181, 452265), (543, 150755), (905, 90453), (1991, 41115), (2715, 30151), (2741, 29865), (5973, 13705), (8223, 9955)]