21072792

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 62596800

約数和(自身を除く): 41524008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 29, 34, 39, 51, 52, 58, 68, 78, 87, 102, 104, 116, 136, 137, 156, 174, 204, 221, 232, 274, 312, 348, 377, 408, 411, 442, 493, 548, 663, 696, 754, 822, 884, 986, 1096, 1131, 1326, 1479, 1508, 1644, 1768, 1781, 1972, 2262, 2329, 2652, 2958, 3016, 3288, 3562, 3944, 3973, 4524, 4658, 5304, 5343, 5916, 6409, 6987, 7124, 7946, 9048, 9316, 10686, 11832, 11919, 12818, 13974, 14248, 15892, 18632, 19227, 21372, 23838, 25636, 27948, 30277, 31784, 38454, 42744, 47676, 51272, 51649, 55896, 60554, 67541, 76908, 90831, 95352, 103298, 121108, 135082, 153816, 154947, 181662, 202623, 206596, 242216, 270164, 309894, 363324, 405246, 413192, 540328, 619788, 726648, 810492, 878033, 1239576, 1620984, 1756066, 2634099, 3512132, 5268198, 7024264, 10536396, 21072792]

約数ペア:

[(1, 21072792), (2, 10536396), (3, 7024264), (4, 5268198), (6, 3512132), (8, 2634099), (12, 1756066), (13, 1620984), (17, 1239576), (24, 878033), (26, 810492), (29, 726648), (34, 619788), (39, 540328), (51, 413192), (52, 405246), (58, 363324), (68, 309894), (78, 270164), (87, 242216), (102, 206596), (104, 202623), (116, 181662), (136, 154947), (137, 153816), (156, 135082), (174, 121108), (204, 103298), (221, 95352), (232, 90831), (274, 76908), (312, 67541), (348, 60554), (377, 55896), (408, 51649), (411, 51272), (442, 47676), (493, 42744), (548, 38454), (663, 31784), (696, 30277), (754, 27948), (822, 25636), (884, 23838), (986, 21372), (1096, 19227), (1131, 18632), (1326, 15892), (1479, 14248), (1508, 13974), (1644, 12818), (1768, 11919), (1781, 11832), (1972, 10686), (2262, 9316), (2329, 9048), (2652, 7946), (2958, 7124), (3016, 6987), (3288, 6409), (3562, 5916), (3944, 5343), (3973, 5304), (4524, 4658)]