1397478267

素因数分解:

$3^2\times {\mathrm{89}}^2\times {\mathrm{19603}}^1$

素因数の和:19787

約数の個数: 18

約数和(自身を含む): 2041619372

約数和(自身を除く): 644141105

約数列:

[1, 3, 9, 89, 267, 801, 7921, 19603, 23763, 58809, 71289, 176427, 1744667, 5234001, 15702003, 155275363, 465826089, 1397478267]

約数ペア:

[(1, 1397478267), (3, 465826089), (9, 155275363), (89, 15702003), (267, 5234001), (801, 1744667), (7921, 176427), (19603, 71289), (23763, 58809)]