20437970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{291971}}^1$

素因数の和:291985

約数の個数: 16

約数和(自身を含む): 42043968

約数和(自身を除く): 21605998

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 291971, 583942, 1459855, 2043797, 2919710, 4087594, 10218985, 20437970]

約数ペア:

[(1, 20437970), (2, 10218985), (5, 4087594), (7, 2919710), (10, 2043797), (14, 1459855), (35, 583942), (70, 291971)]