20977026

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 51179520

約数和(自身を除く): 30202494

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 97, 114, 133, 194, 266, 271, 291, 399, 542, 582, 679, 798, 813, 1358, 1626, 1843, 1897, 2037, 3686, 3794, 4074, 5149, 5529, 5691, 10298, 11058, 11382, 12901, 15447, 25802, 26287, 30894, 36043, 38703, 52574, 72086, 77406, 78861, 108129, 157722, 184009, 216258, 368018, 499453, 552027, 998906, 1104054, 1498359, 2996718, 3496171, 6992342, 10488513, 20977026]

約数ペア:

[(1, 20977026), (2, 10488513), (3, 6992342), (6, 3496171), (7, 2996718), (14, 1498359), (19, 1104054), (21, 998906), (38, 552027), (42, 499453), (57, 368018), (97, 216258), (114, 184009), (133, 157722), (194, 108129), (266, 78861), (271, 77406), (291, 72086), (399, 52574), (542, 38703), (582, 36043), (679, 30894), (798, 26287), (813, 25802), (1358, 15447), (1626, 12901), (1843, 11382), (1897, 11058), (2037, 10298), (3686, 5691), (3794, 5529), (4074, 5149)]