21629181

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{25121}}^1$

素因数の和:25172

約数の個数: 16

約数和(自身を含む): 33763968

約数和(自身を除く): 12134787

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 25121, 75363, 175847, 527541, 1029961, 3089883, 7209727, 21629181]

約数ペア:

[(1, 21629181), (3, 7209727), (7, 3089883), (21, 1029961), (41, 527541), (123, 175847), (287, 75363), (861, 25121)]