19779724

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1319}}^1$

素因数の和:1509

約数の個数: 24

約数和(自身を含む): 36368640

約数和(自身を除く): 16588916

約数列:

[1, 2, 4, 23, 46, 92, 163, 326, 652, 1319, 2638, 3749, 5276, 7498, 14996, 30337, 60674, 121348, 214997, 429994, 859988, 4944931, 9889862, 19779724]

約数ペア:

[(1, 19779724), (2, 9889862), (4, 4944931), (23, 859988), (46, 429994), (92, 214997), (163, 121348), (326, 60674), (652, 30337), (1319, 14996), (2638, 7498), (3749, 5276)]