21269748

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^2\times {\mathrm{631}}^1$

素因数の和:744

約数の個数: 36

約数和(自身を含む): 50663648

約数和(自身を除く): 29393900

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 631, 636, 1262, 1893, 2524, 2809, 3786, 5618, 7572, 8427, 11236, 16854, 33443, 33708, 66886, 100329, 133772, 200658, 401316, 1772479, 3544958, 5317437, 7089916, 10634874, 21269748]

約数ペア:

[(1, 21269748), (2, 10634874), (3, 7089916), (4, 5317437), (6, 3544958), (12, 1772479), (53, 401316), (106, 200658), (159, 133772), (212, 100329), (318, 66886), (631, 33708), (636, 33443), (1262, 16854), (1893, 11236), (2524, 8427), (2809, 7572), (3786, 5618)]