21331905

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29023}}^1$

素因数の和:29045

約数の個数: 24

約数和(自身を含む): 39704832

約数和(自身を除く): 18372927

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29023, 87069, 145115, 203161, 435345, 609483, 1015805, 1422127, 3047415, 4266381, 7110635, 21331905]

約数ペア:

[(1, 21331905), (3, 7110635), (5, 4266381), (7, 3047415), (15, 1422127), (21, 1015805), (35, 609483), (49, 435345), (105, 203161), (147, 145115), (245, 87069), (735, 29023)]