19728376

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{40427}}^1$

素因数の和:40494

約数の個数: 16

約数和(自身を含む): 37598040

約数和(自身を除く): 17869664

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 40427, 80854, 161708, 323416, 2466047, 4932094, 9864188, 19728376]

約数ペア:

[(1, 19728376), (2, 9864188), (4, 4932094), (8, 2466047), (61, 323416), (122, 161708), (244, 80854), (488, 40427)]