21464919

素因数分解:

$3^5\times 7^1\times {\mathrm{12619}}^1$

素因数の和:12641

約数の個数: 24

約数和(自身を含む): 36749440

約数和(自身を除く): 15284521

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12619, 37857, 88333, 113571, 264999, 340713, 794997, 1022139, 2384991, 3066417, 7154973, 21464919]

約数ペア:

[(1, 21464919), (3, 7154973), (7, 3066417), (9, 2384991), (21, 1022139), (27, 794997), (63, 340713), (81, 264999), (189, 113571), (243, 88333), (567, 37857), (1701, 12619)]