21983740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1307}}^1$

素因数の和:1374

約数の個数: 36

約数和(自身を含む): 47849256

約数和(自身を除く): 25865516

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1307, 1682, 2614, 3364, 4205, 5228, 6535, 8410, 13070, 16820, 26140, 37903, 75806, 151612, 189515, 379030, 758060, 1099187, 2198374, 4396748, 5495935, 10991870, 21983740]

約数ペア:

[(1, 21983740), (2, 10991870), (4, 5495935), (5, 4396748), (10, 2198374), (20, 1099187), (29, 758060), (58, 379030), (116, 189515), (145, 151612), (290, 75806), (580, 37903), (841, 26140), (1307, 16820), (1682, 13070), (2614, 8410), (3364, 6535), (4205, 5228)]