28163436

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 77144256

約数和(自身を除く): 48980820

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 211, 227, 294, 422, 454, 588, 633, 681, 844, 908, 1266, 1362, 1477, 1589, 2532, 2724, 2954, 3178, 4431, 4767, 5908, 6356, 8862, 9534, 10339, 11123, 17724, 19068, 20678, 22246, 31017, 33369, 41356, 44492, 47897, 62034, 66738, 95794, 124068, 133476, 143691, 191588, 287382, 335279, 574764, 670558, 1005837, 1341116, 2011674, 2346953, 4023348, 4693906, 7040859, 9387812, 14081718, 28163436]

約数ペア:

[(1, 28163436), (2, 14081718), (3, 9387812), (4, 7040859), (6, 4693906), (7, 4023348), (12, 2346953), (14, 2011674), (21, 1341116), (28, 1005837), (42, 670558), (49, 574764), (84, 335279), (98, 287382), (147, 191588), (196, 143691), (211, 133476), (227, 124068), (294, 95794), (422, 66738), (454, 62034), (588, 47897), (633, 44492), (681, 41356), (844, 33369), (908, 31017), (1266, 22246), (1362, 20678), (1477, 19068), (1589, 17724), (2532, 11123), (2724, 10339), (2954, 9534), (3178, 8862), (4431, 6356), (4767, 5908)]