21786772

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3833}}^1$

素因数の和:3880

約数の個数: 36

約数和(自身を含む): 45892980

約数和(自身を除く): 24106208

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3833, 5684, 7666, 15332, 26831, 53662, 107324, 111157, 187817, 222314, 375634, 444628, 751268, 778099, 1556198, 3112396, 5446693, 10893386, 21786772]

約数ペア:

[(1, 21786772), (2, 10893386), (4, 5446693), (7, 3112396), (14, 1556198), (28, 778099), (29, 751268), (49, 444628), (58, 375634), (98, 222314), (116, 187817), (196, 111157), (203, 107324), (406, 53662), (812, 26831), (1421, 15332), (2842, 7666), (3833, 5684)]