21328944

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:307

約数の個数: 160

約数和(自身を含む): 71662080

約数和(自身を除く): 50333136

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 19, 21, 24, 26, 28, 38, 39, 42, 48, 52, 56, 57, 76, 78, 84, 91, 104, 112, 114, 133, 152, 156, 168, 182, 208, 228, 247, 257, 266, 273, 304, 312, 336, 364, 399, 456, 494, 514, 532, 546, 624, 728, 741, 771, 798, 912, 988, 1028, 1064, 1092, 1456, 1482, 1542, 1596, 1729, 1799, 1976, 2056, 2128, 2184, 2964, 3084, 3192, 3341, 3458, 3598, 3952, 4112, 4368, 4883, 5187, 5397, 5928, 6168, 6384, 6682, 6916, 7196, 9766, 10023, 10374, 10794, 11856, 12336, 13364, 13832, 14392, 14649, 19532, 20046, 20748, 21588, 23387, 26728, 27664, 28784, 29298, 34181, 39064, 40092, 41496, 43176, 46774, 53456, 58596, 63479, 68362, 70161, 78128, 80184, 82992, 86352, 93548, 102543, 117192, 126958, 136724, 140322, 160368, 187096, 190437, 205086, 234384, 253916, 273448, 280644, 374192, 380874, 410172, 444353, 507832, 546896, 561288, 761748, 820344, 888706, 1015664, 1122576, 1333059, 1523496, 1640688, 1777412, 2666118, 3046992, 3554824, 5332236, 7109648, 10664472, 21328944]

約数ペア:

[(1, 21328944), (2, 10664472), (3, 7109648), (4, 5332236), (6, 3554824), (7, 3046992), (8, 2666118), (12, 1777412), (13, 1640688), (14, 1523496), (16, 1333059), (19, 1122576), (21, 1015664), (24, 888706), (26, 820344), (28, 761748), (38, 561288), (39, 546896), (42, 507832), (48, 444353), (52, 410172), (56, 380874), (57, 374192), (76, 280644), (78, 273448), (84, 253916), (91, 234384), (104, 205086), (112, 190437), (114, 187096), (133, 160368), (152, 140322), (156, 136724), (168, 126958), (182, 117192), (208, 102543), (228, 93548), (247, 86352), (257, 82992), (266, 80184), (273, 78128), (304, 70161), (312, 68362), (336, 63479), (364, 58596), (399, 53456), (456, 46774), (494, 43176), (514, 41496), (532, 40092), (546, 39064), (624, 34181), (728, 29298), (741, 28784), (771, 27664), (798, 26728), (912, 23387), (988, 21588), (1028, 20748), (1064, 20046), (1092, 19532), (1456, 14649), (1482, 14392), (1542, 13832), (1596, 13364), (1729, 12336), (1799, 11856), (1976, 10794), (2056, 10374), (2128, 10023), (2184, 9766), (2964, 7196), (3084, 6916), (3192, 6682), (3341, 6384), (3458, 6168), (3598, 5928), (3952, 5397), (4112, 5187), (4368, 4883)]