21031858209

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{7237}}^1\times {\mathrm{31249}}^1$

素因数の和:38520

約数の個数: 16

約数和(自身を含む): 28952000000

約数和(自身を除く): 7920141791

約数列:

[1, 3, 31, 93, 7237, 21711, 31249, 93747, 224347, 673041, 968719, 2906157, 226149013, 678447039, 7010619403, 21031858209]

約数ペア:

[(1, 21031858209), (3, 7010619403), (31, 678447039), (93, 226149013), (7237, 2906157), (21711, 968719), (31249, 673041), (93747, 224347)]