21347530

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68863}}^1$

素因数の和:68901

約数の個数: 16

約数和(自身を含む): 39665664

約数和(自身を除く): 18318134

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68863, 137726, 344315, 688630, 2134753, 4269506, 10673765, 21347530]

約数ペア:

[(1, 21347530), (2, 10673765), (5, 4269506), (10, 2134753), (31, 688630), (62, 344315), (155, 137726), (310, 68863)]