21863590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{547}}^1\times {\mathrm{571}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 45137664

約数和(自身を除く): 23274074

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 547, 571, 1094, 1142, 2735, 2855, 3829, 3997, 5470, 5710, 7658, 7994, 19145, 19985, 38290, 39970, 312337, 624674, 1561685, 2186359, 3123370, 4372718, 10931795, 21863590]

約数ペア:

[(1, 21863590), (2, 10931795), (5, 4372718), (7, 3123370), (10, 2186359), (14, 1561685), (35, 624674), (70, 312337), (547, 39970), (571, 38290), (1094, 19985), (1142, 19145), (2735, 7994), (2855, 7658), (3829, 5710), (3997, 5470)]