21803912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6763}}^1$

素因数の和:6813

約数の個数: 32

約数和(自身を含む): 45454080

約数和(自身を除く): 23650168

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6763, 13526, 27052, 54104, 87919, 175838, 209653, 351676, 419306, 703352, 838612, 1677224, 2725489, 5450978, 10901956, 21803912]

約数ペア:

[(1, 21803912), (2, 10901956), (4, 5450978), (8, 2725489), (13, 1677224), (26, 838612), (31, 703352), (52, 419306), (62, 351676), (104, 209653), (124, 175838), (248, 87919), (403, 54104), (806, 27052), (1612, 13526), (3224, 6763)]