20478974967

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{157}}^1\times {\mathrm{10889}}^1$

素因数の和:11085

約数の個数: 48

約数和(自身を含む): 32746839840

約数和(自身を除く): 12267864873

約数列:

[1, 3, 9, 11, 33, 99, 121, 157, 363, 471, 1089, 1331, 1413, 1727, 3993, 5181, 10889, 11979, 15543, 18997, 32667, 56991, 98001, 119779, 170973, 208967, 359337, 626901, 1078011, 1317569, 1709573, 1880703, 3952707, 5128719, 11858121, 14493259, 15386157, 18805303, 43479777, 56415909, 130439331, 169247727, 206858333, 620574999, 1861724997, 2275441663, 6826324989, 20478974967]

約数ペア:

[(1, 20478974967), (3, 6826324989), (9, 2275441663), (11, 1861724997), (33, 620574999), (99, 206858333), (121, 169247727), (157, 130439331), (363, 56415909), (471, 43479777), (1089, 18805303), (1331, 15386157), (1413, 14493259), (1727, 11858121), (3993, 5128719), (5181, 3952707), (10889, 1880703), (11979, 1709573), (15543, 1317569), (18997, 1078011), (32667, 626901), (56991, 359337), (98001, 208967), (119779, 170973)]