20994254

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6389}}^1$

素因数の和:6475

約数の個数: 16

約数和(自身を含む): 33125760

約数和(自身を除く): 12131506

約数列:

[1, 2, 31, 53, 62, 106, 1643, 3286, 6389, 12778, 198059, 338617, 396118, 677234, 10497127, 20994254]

約数ペア:

[(1, 20994254), (2, 10497127), (31, 677234), (53, 396118), (62, 338617), (106, 198059), (1643, 12778), (3286, 6389)]