21871400

素因数分解:

$2^3\times 5^2\times {\mathrm{109357}}^1$

素因数の和:109373

約数の個数: 24

約数和(自身を含む): 50851470

約数和(自身を除く): 28980070

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 109357, 218714, 437428, 546785, 874856, 1093570, 2187140, 2733925, 4374280, 5467850, 10935700, 21871400]

約数ペア:

[(1, 21871400), (2, 10935700), (4, 5467850), (5, 4374280), (8, 2733925), (10, 2187140), (20, 1093570), (25, 874856), (40, 546785), (50, 437428), (100, 218714), (200, 109357)]