21752715

素因数分解:

$3^1\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1931}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 34868736

約数和(自身を除く): 13116021

約数列:

[1, 3, 5, 15, 751, 1931, 2253, 3755, 5793, 9655, 11265, 28965, 1450181, 4350543, 7250905, 21752715]

約数ペア:

[(1, 21752715), (3, 7250905), (5, 4350543), (15, 1450181), (751, 28965), (1931, 11265), (2253, 9655), (3755, 5793)]