19745776

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53657}}^1$

素因数の和:53688

約数の個数: 20

約数和(自身を含む): 39921552

約数和(自身を除く): 20175776

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 53657, 107314, 214628, 429256, 858512, 1234111, 2468222, 4936444, 9872888, 19745776]

約数ペア:

[(1, 19745776), (2, 9872888), (4, 4936444), (8, 2468222), (16, 1234111), (23, 858512), (46, 429256), (92, 214628), (184, 107314), (368, 53657)]