21206772

素因数分解:

$2^2\times 3^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 120

約数和(自身を含む): 59865960

約数和(自身を除く): 38659188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 37, 54, 58, 61, 74, 81, 87, 108, 111, 116, 122, 148, 162, 174, 183, 222, 244, 261, 324, 333, 348, 366, 444, 522, 549, 666, 732, 783, 999, 1044, 1073, 1098, 1332, 1566, 1647, 1769, 1998, 2146, 2196, 2257, 2349, 2997, 3132, 3219, 3294, 3538, 3996, 4292, 4514, 4698, 4941, 5307, 5994, 6438, 6588, 6771, 7076, 9028, 9396, 9657, 9882, 10614, 11988, 12876, 13542, 15921, 19314, 19764, 20313, 21228, 27084, 28971, 31842, 38628, 40626, 47763, 57942, 60939, 63684, 65453, 81252, 86913, 95526, 115884, 121878, 130906, 143289, 173826, 182817, 191052, 196359, 243756, 261812, 286578, 347652, 365634, 392718, 573156, 589077, 731268, 785436, 1178154, 1767231, 2356308, 3534462, 5301693, 7068924, 10603386, 21206772]

約数ペア:

[(1, 21206772), (2, 10603386), (3, 7068924), (4, 5301693), (6, 3534462), (9, 2356308), (12, 1767231), (18, 1178154), (27, 785436), (29, 731268), (36, 589077), (37, 573156), (54, 392718), (58, 365634), (61, 347652), (74, 286578), (81, 261812), (87, 243756), (108, 196359), (111, 191052), (116, 182817), (122, 173826), (148, 143289), (162, 130906), (174, 121878), (183, 115884), (222, 95526), (244, 86913), (261, 81252), (324, 65453), (333, 63684), (348, 60939), (366, 57942), (444, 47763), (522, 40626), (549, 38628), (666, 31842), (732, 28971), (783, 27084), (999, 21228), (1044, 20313), (1073, 19764), (1098, 19314), (1332, 15921), (1566, 13542), (1647, 12876), (1769, 11988), (1998, 10614), (2146, 9882), (2196, 9657), (2257, 9396), (2349, 9028), (2997, 7076), (3132, 6771), (3219, 6588), (3294, 6438), (3538, 5994), (3996, 5307), (4292, 4941), (4514, 4698)]