2991771

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 4586400

約数和(自身を除く): 1594629

約数列:

[1, 3, 9, 23, 69, 97, 149, 207, 291, 447, 873, 1341, 2231, 3427, 6693, 10281, 14453, 20079, 30843, 43359, 130077, 332419, 997257, 2991771]

約数ペア:

[(1, 2991771), (3, 997257), (9, 332419), (23, 130077), (69, 43359), (97, 30843), (149, 20079), (207, 14453), (291, 10281), (447, 6693), (873, 3427), (1341, 2231)]