21872060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156229}}^1$

素因数の和:156245

約数の個数: 24

約数和(自身を含む): 52493280

約数和(自身を除く): 30621220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156229, 312458, 624916, 781145, 1093603, 1562290, 2187206, 3124580, 4374412, 5468015, 10936030, 21872060]

約数ペア:

[(1, 21872060), (2, 10936030), (4, 5468015), (5, 4374412), (7, 3124580), (10, 2187206), (14, 1562290), (20, 1093603), (28, 781145), (35, 624916), (70, 312458), (140, 156229)]