21017148

素因数分解:

$2^2\times 3^1\times {\mathrm{647}}^1\times {\mathrm{2707}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 49133952

約数和(自身を除く): 28116804

約数列:

[1, 2, 3, 4, 6, 12, 647, 1294, 1941, 2588, 2707, 3882, 5414, 7764, 8121, 10828, 16242, 32484, 1751429, 3502858, 5254287, 7005716, 10508574, 21017148]

約数ペア:

[(1, 21017148), (2, 10508574), (3, 7005716), (4, 5254287), (6, 3502858), (12, 1751429), (647, 32484), (1294, 16242), (1941, 10828), (2588, 8121), (2707, 7764), (3882, 5414)]