21154532

素因数分解:

$2^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1721}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 42430080

約数和(自身を除く): 21275548

約数列:

[1, 2, 4, 7, 14, 28, 439, 878, 1721, 1756, 3073, 3442, 6146, 6884, 12047, 12292, 24094, 48188, 755519, 1511038, 3022076, 5288633, 10577266, 21154532]

約数ペア:

[(1, 21154532), (2, 10577266), (4, 5288633), (7, 3022076), (14, 1511038), (28, 755519), (439, 48188), (878, 24094), (1721, 12292), (1756, 12047), (3073, 6884), (3442, 6146)]