42215895

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21817}}^1$

素因数の和:21871

約数の個数: 24

約数和(自身を含む): 74879376

約数和(自身を除く): 32663481

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 21817, 65451, 109085, 196353, 327255, 938131, 981765, 2814393, 4690655, 8443179, 14071965, 42215895]

約数ペア:

[(1, 42215895), (3, 14071965), (5, 8443179), (9, 4690655), (15, 2814393), (43, 981765), (45, 938131), (129, 327255), (215, 196353), (387, 109085), (645, 65451), (1935, 21817)]