20958728

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12073}}^1$

素因数の和:12117

約数の個数: 32

約数和(自身を含む): 46364160

約数和(自身を除く): 25405432

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12073, 24146, 48292, 84511, 96584, 169022, 338044, 374263, 676088, 748526, 1497052, 2619841, 2994104, 5239682, 10479364, 20958728]

約数ペア:

[(1, 20958728), (2, 10479364), (4, 5239682), (7, 2994104), (8, 2619841), (14, 1497052), (28, 748526), (31, 676088), (56, 374263), (62, 338044), (124, 169022), (217, 96584), (248, 84511), (434, 48292), (868, 24146), (1736, 12073)]