21191055

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34457}}^1$

素因数の和:34506

約数の個数: 16

約数和(自身を含む): 34733664

約数和(自身を除く): 13542609

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34457, 103371, 172285, 516855, 1412737, 4238211, 7063685, 21191055]

約数ペア:

[(1, 21191055), (3, 7063685), (5, 4238211), (15, 1412737), (41, 516855), (123, 172285), (205, 103371), (615, 34457)]