21125844

素因数分解:

$2^2\times 3^2\times {\mathrm{647}}^1\times {\mathrm{907}}^1$

素因数の和:1564

約数の個数: 36

約数和(自身を含む): 53542944

約数和(自身を除く): 32417100

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 647, 907, 1294, 1814, 1941, 2588, 2721, 3628, 3882, 5442, 5823, 7764, 8163, 10884, 11646, 16326, 23292, 32652, 586829, 1173658, 1760487, 2347316, 3520974, 5281461, 7041948, 10562922, 21125844]

約数ペア:

[(1, 21125844), (2, 10562922), (3, 7041948), (4, 5281461), (6, 3520974), (9, 2347316), (12, 1760487), (18, 1173658), (36, 586829), (647, 32652), (907, 23292), (1294, 16326), (1814, 11646), (1941, 10884), (2588, 8163), (2721, 7764), (3628, 5823), (3882, 5442)]