21289866

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3739}}^1$

素因数の和:3830

約数の個数: 32

約数和(自身を含む): 46495680

約数和(自身を除く): 25205814

約数列:

[1, 2, 3, 6, 13, 26, 39, 73, 78, 146, 219, 438, 949, 1898, 2847, 3739, 5694, 7478, 11217, 22434, 48607, 97214, 145821, 272947, 291642, 545894, 818841, 1637682, 3548311, 7096622, 10644933, 21289866]

約数ペア:

[(1, 21289866), (2, 10644933), (3, 7096622), (6, 3548311), (13, 1637682), (26, 818841), (39, 545894), (73, 291642), (78, 272947), (146, 145821), (219, 97214), (438, 48607), (949, 22434), (1898, 11217), (2847, 7478), (3739, 5694)]