25780797

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 44778240

約数和(自身を除く): 18997443

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 103, 137, 203, 261, 309, 411, 609, 721, 927, 959, 1233, 1827, 2163, 2877, 2987, 3973, 6489, 8631, 8961, 11919, 14111, 20909, 26883, 27811, 35757, 42333, 62727, 83433, 98777, 126999, 188181, 250299, 296331, 409219, 888993, 1227657, 2864533, 3682971, 8593599, 25780797]

約数ペア:

[(1, 25780797), (3, 8593599), (7, 3682971), (9, 2864533), (21, 1227657), (29, 888993), (63, 409219), (87, 296331), (103, 250299), (137, 188181), (203, 126999), (261, 98777), (309, 83433), (411, 62727), (609, 42333), (721, 35757), (927, 27811), (959, 26883), (1233, 20909), (1827, 14111), (2163, 11919), (2877, 8961), (2987, 8631), (3973, 6489)]