21431390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{126067}}^1$

素因数の和:126091

約数の個数: 16

約数和(自身を含む): 40846032

約数和(自身を除く): 19414642

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 126067, 252134, 630335, 1260670, 2143139, 4286278, 10715695, 21431390]

約数ペア:

[(1, 21431390), (2, 10715695), (5, 4286278), (10, 2143139), (17, 1260670), (34, 630335), (85, 252134), (170, 126067)]