20835812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2339}}^1$

素因数の和:2491

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 18083068

約数列:

[1, 2, 4, 17, 34, 68, 131, 262, 524, 2227, 2339, 4454, 4678, 8908, 9356, 39763, 79526, 159052, 306409, 612818, 1225636, 5208953, 10417906, 20835812]

約数ペア:

[(1, 20835812), (2, 10417906), (4, 5208953), (17, 1225636), (34, 612818), (68, 306409), (131, 159052), (262, 79526), (524, 39763), (2227, 9356), (2339, 8908), (4454, 4678)]