21867272

素因数分解:

$2^3\times 7^1\times {\mathrm{390487}}^1$

素因数の和:390500

約数の個数: 16

約数和(自身を含む): 46858560

約数和(自身を除く): 24991288

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390487, 780974, 1561948, 2733409, 3123896, 5466818, 10933636, 21867272]

約数ペア:

[(1, 21867272), (2, 10933636), (4, 5466818), (7, 3123896), (8, 2733409), (14, 1561948), (28, 780974), (56, 390487)]