21099348

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 56856800

約数和(自身を除く): 35757452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 109, 114, 171, 218, 228, 283, 327, 342, 436, 566, 654, 684, 849, 981, 1132, 1308, 1698, 1962, 2071, 2547, 3396, 3924, 4142, 5094, 5377, 6213, 8284, 10188, 10754, 12426, 16131, 18639, 21508, 24852, 30847, 32262, 37278, 48393, 61694, 64524, 74556, 92541, 96786, 123388, 185082, 193572, 277623, 370164, 555246, 586093, 1110492, 1172186, 1758279, 2344372, 3516558, 5274837, 7033116, 10549674, 21099348]

約数ペア:

[(1, 21099348), (2, 10549674), (3, 7033116), (4, 5274837), (6, 3516558), (9, 2344372), (12, 1758279), (18, 1172186), (19, 1110492), (36, 586093), (38, 555246), (57, 370164), (76, 277623), (109, 193572), (114, 185082), (171, 123388), (218, 96786), (228, 92541), (283, 74556), (327, 64524), (342, 61694), (436, 48393), (566, 37278), (654, 32262), (684, 30847), (849, 24852), (981, 21508), (1132, 18639), (1308, 16131), (1698, 12426), (1962, 10754), (2071, 10188), (2547, 8284), (3396, 6213), (3924, 5377), (4142, 5094)]