21807112

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 41805720

約数和(自身を除く): 19998608

約数列:

[1, 2, 4, 8, 101, 137, 197, 202, 274, 394, 404, 548, 788, 808, 1096, 1576, 13837, 19897, 26989, 27674, 39794, 53978, 55348, 79588, 107956, 110696, 159176, 215912, 2725889, 5451778, 10903556, 21807112]

約数ペア:

[(1, 21807112), (2, 10903556), (4, 5451778), (8, 2725889), (101, 215912), (137, 159176), (197, 110696), (202, 107956), (274, 79588), (394, 55348), (404, 53978), (548, 39794), (788, 27674), (808, 26989), (1096, 19897), (1576, 13837)]