80842209

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{11701}}^1$

素因数の和:11765

約数の個数: 24

約数和(自身を含む): 128066688

約数和(自身を除く): 47224479

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 6909, 11701, 35103, 81907, 245721, 549947, 573349, 1649841, 1720047, 3849629, 11548887, 26947403, 80842209]

約数ペア:

[(1, 80842209), (3, 26947403), (7, 11548887), (21, 3849629), (47, 1720047), (49, 1649841), (141, 573349), (147, 549947), (329, 245721), (987, 81907), (2303, 35103), (6909, 11701)]