21273465

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34591}}^1$

素因数の和:34640

約数の個数: 16

約数和(自身を含む): 34868736

約数和(自身を除く): 13595271

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34591, 103773, 172955, 518865, 1418231, 4254693, 7091155, 21273465]

約数ペア:

[(1, 21273465), (3, 7091155), (5, 4254693), (15, 1418231), (41, 518865), (123, 172955), (205, 103773), (615, 34591)]