21379700

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{3191}}^1$

素因数の和:3272

約数の個数: 36

約数和(自身を含む): 47101152

約数和(自身を除く): 25721452

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 268, 335, 670, 1340, 1675, 3191, 3350, 6382, 6700, 12764, 15955, 31910, 63820, 79775, 159550, 213797, 319100, 427594, 855188, 1068985, 2137970, 4275940, 5344925, 10689850, 21379700]

約数ペア:

[(1, 21379700), (2, 10689850), (4, 5344925), (5, 4275940), (10, 2137970), (20, 1068985), (25, 855188), (50, 427594), (67, 319100), (100, 213797), (134, 159550), (268, 79775), (335, 63820), (670, 31910), (1340, 15955), (1675, 12764), (3191, 6700), (3350, 6382)]