21809076

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^2\times {\mathrm{647}}^1$

素因数の和:760

約数の個数: 36

約数和(自身を含む): 51946272

約数和(自身を除く): 30137196

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636, 647, 1294, 1941, 2588, 2809, 3882, 5618, 7764, 8427, 11236, 16854, 33708, 34291, 68582, 102873, 137164, 205746, 411492, 1817423, 3634846, 5452269, 7269692, 10904538, 21809076]

約数ペア:

[(1, 21809076), (2, 10904538), (3, 7269692), (4, 5452269), (6, 3634846), (12, 1817423), (53, 411492), (106, 205746), (159, 137164), (212, 102873), (318, 68582), (636, 34291), (647, 33708), (1294, 16854), (1941, 11236), (2588, 8427), (2809, 7764), (3882, 5618)]