197706987

素因数分解:

$3^7\times {\mathrm{90401}}^1$

素因数の和:90422

約数の個数: 16

約数和(自身を含む): 296518560

約数和(自身を除く): 98811573

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 90401, 271203, 813609, 2440827, 7322481, 21967443, 65902329, 197706987]

約数ペア:

[(1, 197706987), (3, 65902329), (9, 21967443), (27, 7322481), (81, 2440827), (243, 813609), (729, 271203), (2187, 90401)]