20397795

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{683}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 35852544

約数和(自身を除く): 15454749

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 181, 543, 683, 905, 1991, 2049, 2715, 3415, 5973, 7513, 9955, 10245, 22539, 29865, 37565, 112695, 123623, 370869, 618115, 1359853, 1854345, 4079559, 6799265, 20397795]

約数ペア:

[(1, 20397795), (3, 6799265), (5, 4079559), (11, 1854345), (15, 1359853), (33, 618115), (55, 370869), (165, 123623), (181, 112695), (543, 37565), (683, 29865), (905, 22539), (1991, 10245), (2049, 9955), (2715, 7513), (3415, 5973)]