20796412

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 49172480

約数和(自身を除く): 28376068

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 38, 52, 62, 76, 91, 97, 124, 133, 182, 194, 217, 247, 266, 364, 388, 403, 434, 494, 532, 589, 679, 806, 868, 988, 1178, 1261, 1358, 1612, 1729, 1843, 2356, 2522, 2716, 2821, 3007, 3458, 3686, 4123, 5044, 5642, 6014, 6916, 7372, 7657, 8246, 8827, 11284, 12028, 12901, 15314, 16492, 17654, 21049, 23959, 25802, 30628, 35308, 39091, 42098, 47918, 51604, 53599, 57133, 78182, 84196, 95836, 107198, 114266, 156364, 167713, 214396, 228532, 273637, 335426, 399931, 547274, 670852, 742729, 799862, 1094548, 1485458, 1599724, 2970916, 5199103, 10398206, 20796412]

約数ペア:

[(1, 20796412), (2, 10398206), (4, 5199103), (7, 2970916), (13, 1599724), (14, 1485458), (19, 1094548), (26, 799862), (28, 742729), (31, 670852), (38, 547274), (52, 399931), (62, 335426), (76, 273637), (91, 228532), (97, 214396), (124, 167713), (133, 156364), (182, 114266), (194, 107198), (217, 95836), (247, 84196), (266, 78182), (364, 57133), (388, 53599), (403, 51604), (434, 47918), (494, 42098), (532, 39091), (589, 35308), (679, 30628), (806, 25802), (868, 23959), (988, 21049), (1178, 17654), (1261, 16492), (1358, 15314), (1612, 12901), (1729, 12028), (1843, 11284), (2356, 8827), (2522, 8246), (2716, 7657), (2821, 7372), (3007, 6916), (3458, 6014), (3686, 5642), (4123, 5044)]