21559412

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3793}}^1$

素因数の和:3840

約数の個数: 36

約数和(自身を含む): 45414180

約数和(自身を除く): 23854768

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3793, 5684, 7586, 15172, 26551, 53102, 106204, 109997, 185857, 219994, 371714, 439988, 743428, 769979, 1539958, 3079916, 5389853, 10779706, 21559412]

約数ペア:

[(1, 21559412), (2, 10779706), (4, 5389853), (7, 3079916), (14, 1539958), (28, 769979), (29, 743428), (49, 439988), (58, 371714), (98, 219994), (116, 185857), (196, 109997), (203, 106204), (406, 53102), (812, 26551), (1421, 15172), (2842, 7586), (3793, 5684)]