20639658

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2473}}^1$

素因数の和:2598

約数の個数: 32

約数和(自身を含む): 44888256

約数和(自身を除く): 24248598

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 107, 214, 321, 642, 1391, 2473, 2782, 4173, 4946, 7419, 8346, 14838, 32149, 64298, 96447, 192894, 264611, 529222, 793833, 1587666, 3439943, 6879886, 10319829, 20639658]

約数ペア:

[(1, 20639658), (2, 10319829), (3, 6879886), (6, 3439943), (13, 1587666), (26, 793833), (39, 529222), (78, 264611), (107, 192894), (214, 96447), (321, 64298), (642, 32149), (1391, 14838), (2473, 8346), (2782, 7419), (4173, 4946)]