21000331772

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6637273}}^1$

素因数の和:6637397

約数の個数: 24

約数和(自身を含む): 42372357216

約数和(自身を除く): 21372025444

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6637273, 13274546, 26549092, 46460911, 92921822, 185843644, 750011849, 1500023698, 3000047396, 5250082943, 10500165886, 21000331772]

約数ペア:

[(1, 21000331772), (2, 10500165886), (4, 5250082943), (7, 3000047396), (14, 1500023698), (28, 750011849), (113, 185843644), (226, 92921822), (452, 46460911), (791, 26549092), (1582, 13274546), (3164, 6637273)]