20753316

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 54545400

約数和(自身を除く): 33792084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 73, 106, 146, 149, 159, 212, 219, 292, 298, 318, 438, 447, 477, 596, 636, 657, 876, 894, 954, 1314, 1341, 1788, 1908, 2628, 2682, 3869, 5364, 7738, 7897, 10877, 11607, 15476, 15794, 21754, 23214, 23691, 31588, 32631, 34821, 43508, 46428, 47382, 65262, 69642, 71073, 94764, 97893, 130524, 139284, 142146, 195786, 284292, 391572, 576481, 1152962, 1729443, 2305924, 3458886, 5188329, 6917772, 10376658, 20753316]

約数ペア:

[(1, 20753316), (2, 10376658), (3, 6917772), (4, 5188329), (6, 3458886), (9, 2305924), (12, 1729443), (18, 1152962), (36, 576481), (53, 391572), (73, 284292), (106, 195786), (146, 142146), (149, 139284), (159, 130524), (212, 97893), (219, 94764), (292, 71073), (298, 69642), (318, 65262), (438, 47382), (447, 46428), (477, 43508), (596, 34821), (636, 32631), (657, 31588), (876, 23691), (894, 23214), (954, 21754), (1314, 15794), (1341, 15476), (1788, 11607), (1908, 10877), (2628, 7897), (2682, 7738), (3869, 5364)]