21825580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22271}}^1$

素因数の和:22294

約数の個数: 36

約数和(自身を含む): 53319168

約数和(自身を除く): 31493588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22271, 44542, 89084, 111355, 155897, 222710, 311794, 445420, 623588, 779485, 1091279, 1558970, 2182558, 3117940, 4365116, 5456395, 10912790, 21825580]

約数ペア:

[(1, 21825580), (2, 10912790), (4, 5456395), (5, 4365116), (7, 3117940), (10, 2182558), (14, 1558970), (20, 1091279), (28, 779485), (35, 623588), (49, 445420), (70, 311794), (98, 222710), (140, 155897), (196, 111355), (245, 89084), (490, 44542), (980, 22271)]