21998060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22447}}^1$

素因数の和:22470

約数の個数: 36

約数和(自身を含む): 53740512

約数和(自身を除く): 31742452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22447, 44894, 89788, 112235, 157129, 224470, 314258, 448940, 628516, 785645, 1099903, 1571290, 2199806, 3142580, 4399612, 5499515, 10999030, 21998060]

約数ペア:

[(1, 21998060), (2, 10999030), (4, 5499515), (5, 4399612), (7, 3142580), (10, 2199806), (14, 1571290), (20, 1099903), (28, 785645), (35, 628516), (49, 448940), (70, 314258), (98, 224470), (140, 157129), (196, 112235), (245, 89788), (490, 44894), (980, 22447)]