7978971

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2657}}^1$

素因数の和:2691

約数の個数: 32

約数和(自身を含む): 14289408

約数和(自身を除く): 6310437

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 2657, 3003, 7971, 18599, 29227, 34541, 55797, 87681, 103623, 204589, 241787, 379951, 613767, 725361, 1139853, 2659657, 7978971]

約数ペア:

[(1, 7978971), (3, 2659657), (7, 1139853), (11, 725361), (13, 613767), (21, 379951), (33, 241787), (39, 204589), (77, 103623), (91, 87681), (143, 55797), (231, 34541), (273, 29227), (429, 18599), (1001, 7971), (2657, 3003)]