21061238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 15330442

約数列:

[1, 2, 11, 22, 23, 46, 107, 214, 253, 389, 506, 778, 1177, 2354, 2461, 4279, 4922, 8558, 8947, 17894, 27071, 41623, 54142, 83246, 98417, 196834, 457853, 915706, 957329, 1914658, 10530619, 21061238]

約数ペア:

[(1, 21061238), (2, 10530619), (11, 1914658), (22, 957329), (23, 915706), (46, 457853), (107, 196834), (214, 98417), (253, 83246), (389, 54142), (506, 41623), (778, 27071), (1177, 17894), (2354, 8947), (2461, 8558), (4279, 4922)]