681476691

素因数分解:

$3^1\times 7^1\times {\mathrm{2551}}^1\times {\mathrm{12721}}^1$

素因数の和:15282

約数の個数: 16

約数和(自身を含む): 1038929408

約数和(自身を除く): 357452717

約数列:

[1, 3, 7, 21, 2551, 7653, 12721, 17857, 38163, 53571, 89047, 267141, 32451271, 97353813, 227158897, 681476691]

約数ペア:

[(1, 681476691), (3, 227158897), (7, 97353813), (21, 32451271), (2551, 267141), (7653, 89047), (12721, 53571), (17857, 38163)]