20101565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21499}}^1$

素因数の和:21532

約数の個数: 16

約数和(自身を含む): 27864000

約数和(自身を除く): 7762435

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 21499, 107495, 236489, 365483, 1182445, 1827415, 4020313, 20101565]

約数ペア:

[(1, 20101565), (5, 4020313), (11, 1827415), (17, 1182445), (55, 365483), (85, 236489), (187, 107495), (935, 21499)]