39968271

素因数分解:

$3^2\times 7^2\times {\mathrm{90631}}^1$

素因数の和:90651

約数の個数: 18

約数和(自身を含む): 67158312

約数和(自身を除く): 27190041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 90631, 271893, 634417, 815679, 1903251, 4440919, 5709753, 13322757, 39968271]

約数ペア:

[(1, 39968271), (3, 13322757), (7, 5709753), (9, 4440919), (21, 1903251), (49, 815679), (63, 634417), (147, 271893), (441, 90631)]