21395983

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2293}}^1$

素因数の和:2374

約数の個数: 16

約数和(自身を含む): 25839616

約数和(自身を除く): 4443633

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2293, 9331, 16051, 71083, 98599, 497581, 690193, 3056569, 21395983]

約数ペア:

[(1, 21395983), (7, 3056569), (31, 690193), (43, 497581), (217, 98599), (301, 71083), (1333, 16051), (2293, 9331)]