20510865

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11117}}^1$

素因数の和:11169

約数の個数: 24

約数和(自身を含む): 36422568

約数和(自身を除く): 15911703

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 11117, 33351, 55585, 100053, 166755, 455797, 500265, 1367391, 2278985, 4102173, 6836955, 20510865]

約数ペア:

[(1, 20510865), (3, 6836955), (5, 4102173), (9, 2278985), (15, 1367391), (41, 500265), (45, 455797), (123, 166755), (205, 100053), (369, 55585), (615, 33351), (1845, 11117)]