21221772

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 59270400

約数和(自身を除く): 38048628

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 83, 132, 143, 149, 156, 166, 249, 286, 298, 332, 429, 447, 498, 572, 596, 858, 894, 913, 996, 1079, 1639, 1716, 1788, 1826, 1937, 2158, 2739, 3237, 3278, 3652, 3874, 4316, 4917, 5478, 5811, 6474, 6556, 7748, 9834, 10956, 11622, 11869, 12367, 12948, 19668, 21307, 23244, 23738, 24734, 35607, 37101, 42614, 47476, 49468, 63921, 71214, 74202, 85228, 127842, 136037, 142428, 148404, 160771, 255684, 272074, 321542, 408111, 482313, 544148, 643084, 816222, 964626, 1632444, 1768481, 1929252, 3536962, 5305443, 7073924, 10610886, 21221772]

約数ペア:

[(1, 21221772), (2, 10610886), (3, 7073924), (4, 5305443), (6, 3536962), (11, 1929252), (12, 1768481), (13, 1632444), (22, 964626), (26, 816222), (33, 643084), (39, 544148), (44, 482313), (52, 408111), (66, 321542), (78, 272074), (83, 255684), (132, 160771), (143, 148404), (149, 142428), (156, 136037), (166, 127842), (249, 85228), (286, 74202), (298, 71214), (332, 63921), (429, 49468), (447, 47476), (498, 42614), (572, 37101), (596, 35607), (858, 24734), (894, 23738), (913, 23244), (996, 21307), (1079, 19668), (1639, 12948), (1716, 12367), (1788, 11869), (1826, 11622), (1937, 10956), (2158, 9834), (2739, 7748), (3237, 6556), (3278, 6474), (3652, 5811), (3874, 5478), (4316, 4917)]