21728588

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18047}}^1$

素因数の和:18101

約数の個数: 24

約数和(自身を含む): 44470272

約数和(自身を除く): 22741684

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 18047, 36094, 72188, 126329, 252658, 505316, 776021, 1552042, 3104084, 5432147, 10864294, 21728588]

約数ペア:

[(1, 21728588), (2, 10864294), (4, 5432147), (7, 3104084), (14, 1552042), (28, 776021), (43, 505316), (86, 252658), (172, 126329), (301, 72188), (602, 36094), (1204, 18047)]