21382008

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20719}}^1$

素因数の和:20771

約数の個数: 32

約数和(自身を含む): 54700800

約数和(自身を除く): 33318792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20719, 41438, 62157, 82876, 124314, 165752, 248628, 497256, 890917, 1781834, 2672751, 3563668, 5345502, 7127336, 10691004, 21382008]

約数ペア:

[(1, 21382008), (2, 10691004), (3, 7127336), (4, 5345502), (6, 3563668), (8, 2672751), (12, 1781834), (24, 890917), (43, 497256), (86, 248628), (129, 165752), (172, 124314), (258, 82876), (344, 62157), (516, 41438), (1032, 20719)]