81361455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2341}}^1$

素因数の和:2687

約数の個数: 32

約数和(自身を含む): 149288448

約数和(自身を除く): 67926993

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 331, 993, 1655, 2317, 2341, 4965, 6951, 7023, 11585, 11705, 16387, 34755, 35115, 49161, 81935, 245805, 774871, 2324613, 3874355, 5424097, 11623065, 16272291, 27120485, 81361455]

約数ペア:

[(1, 81361455), (3, 27120485), (5, 16272291), (7, 11623065), (15, 5424097), (21, 3874355), (35, 2324613), (105, 774871), (331, 245805), (993, 81935), (1655, 49161), (2317, 35115), (2341, 34755), (4965, 16387), (6951, 11705), (7023, 11585)]