21418288

素因数分解:

$2^4\times {\mathrm{647}}^1\times {\mathrm{2069}}^1$

素因数の和:2724

約数の個数: 20

約数和(自身を含む): 41582160

約数和(自身を除く): 20163872

約数列:

[1, 2, 4, 8, 16, 647, 1294, 2069, 2588, 4138, 5176, 8276, 10352, 16552, 33104, 1338643, 2677286, 5354572, 10709144, 21418288]

約数ペア:

[(1, 21418288), (2, 10709144), (4, 5354572), (8, 2677286), (16, 1338643), (647, 33104), (1294, 16552), (2069, 10352), (2588, 8276), (4138, 5176)]