20271490

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47143}}^1$

素因数の和:47193

約数の個数: 16

約数和(自身を含む): 37338048

約数和(自身を除く): 17066558

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47143, 94286, 235715, 471430, 2027149, 4054298, 10135745, 20271490]

約数ペア:

[(1, 20271490), (2, 10135745), (5, 4054298), (10, 2027149), (43, 471430), (86, 235715), (215, 94286), (430, 47143)]