19996315

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4241}}^1$

素因数の和:4310

約数の個数: 16

約数和(自身を含む): 25655616

約数和(自身を除く): 5659301

約数列:

[1, 5, 23, 41, 115, 205, 943, 4241, 4715, 21205, 97543, 173881, 487715, 869405, 3999263, 19996315]

約数ペア:

[(1, 19996315), (5, 3999263), (23, 869405), (41, 487715), (115, 173881), (205, 97543), (943, 21205), (4241, 4715)]