20718670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42283}}^1$

素因数の和:42304

約数の個数: 24

約数和(自身を含む): 43383384

約数和(自身を除く): 22664714

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42283, 84566, 211415, 295981, 422830, 591962, 1479905, 2071867, 2959810, 4143734, 10359335, 20718670]

約数ペア:

[(1, 20718670), (2, 10359335), (5, 4143734), (7, 2959810), (10, 2071867), (14, 1479905), (35, 591962), (49, 422830), (70, 295981), (98, 211415), (245, 84566), (490, 42283)]