9928821

素因数分解:

$3^1\times 7^3\times {\mathrm{9649}}^1$

素因数の和:9673

約数の個数: 16

約数和(自身を含む): 15440000

約数和(自身を除く): 5511179

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 9649, 28947, 67543, 202629, 472801, 1418403, 3309607, 9928821]

約数ペア:

[(1, 9928821), (3, 3309607), (7, 1418403), (21, 472801), (49, 202629), (147, 67543), (343, 28947), (1029, 9649)]