21871724

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45949}}^1$

素因数の和:45977

約数の個数: 24

約数和(自身を含む): 46317600

約数和(自身を除く): 24445876

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45949, 91898, 183796, 321643, 643286, 781133, 1286572, 1562266, 3124532, 5467931, 10935862, 21871724]

約数ペア:

[(1, 21871724), (2, 10935862), (4, 5467931), (7, 3124532), (14, 1562266), (17, 1286572), (28, 781133), (34, 643286), (68, 321643), (119, 183796), (238, 91898), (476, 45949)]