28447783

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 10852121

約数列:

[1, 7, 13, 17, 37, 49, 71, 91, 119, 221, 259, 481, 497, 629, 637, 833, 923, 1207, 1547, 1813, 2627, 3367, 3479, 4403, 6461, 8177, 8449, 10829, 15691, 18389, 23569, 30821, 34151, 44659, 45227, 57239, 59143, 109837, 128723, 239057, 312613, 400673, 580567, 768859, 1673399, 2188291, 4063969, 28447783]

約数ペア:

[(1, 28447783), (7, 4063969), (13, 2188291), (17, 1673399), (37, 768859), (49, 580567), (71, 400673), (91, 312613), (119, 239057), (221, 128723), (259, 109837), (481, 59143), (497, 57239), (629, 45227), (637, 44659), (833, 34151), (923, 30821), (1207, 23569), (1547, 18389), (1813, 15691), (2627, 10829), (3367, 8449), (3479, 8177), (4403, 6461)]