20581220877

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23903857}}^1$

素因数の和:23903908

約数の個数: 16

約数和(自身を含む): 32126785152

約数和(自身を除く): 11545564275

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 23903857, 71711571, 167326999, 501980997, 980058137, 2940174411, 6860406959, 20581220877]

約数ペア:

[(1, 20581220877), (3, 6860406959), (7, 2940174411), (21, 980058137), (41, 501980997), (123, 167326999), (287, 71711571), (861, 23903857)]