21396568

素因数分解:

$2^3\times {\mathrm{1093}}^1\times {\mathrm{2447}}^1$

素因数の和:3546

約数の個数: 16

約数和(自身を含む): 40171680

約数和(自身を除く): 18775112

約数列:

[1, 2, 4, 8, 1093, 2186, 2447, 4372, 4894, 8744, 9788, 19576, 2674571, 5349142, 10698284, 21396568]

約数ペア:

[(1, 21396568), (2, 10698284), (4, 5349142), (8, 2674571), (1093, 19576), (2186, 9788), (2447, 8744), (4372, 4894)]