21041644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2339}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 39901680

約数和(自身を除く): 18860036

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 2339, 4498, 4678, 8996, 9356, 30407, 60814, 121628, 404647, 809294, 1618588, 5260411, 10520822, 21041644]

約数ペア:

[(1, 21041644), (2, 10520822), (4, 5260411), (13, 1618588), (26, 809294), (52, 404647), (173, 121628), (346, 60814), (692, 30407), (2249, 9356), (2339, 8996), (4498, 4678)]