21054592

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12653}}^1$

素因数の和:12680

約数の個数: 32

約数和(自身を含む): 45174780

約数和(自身を除く): 24120188

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12653, 25306, 50612, 101224, 164489, 202448, 328978, 404896, 657956, 809792, 1315912, 1619584, 2631824, 5263648, 10527296, 21054592]

約数ペア:

[(1, 21054592), (2, 10527296), (4, 5263648), (8, 2631824), (13, 1619584), (16, 1315912), (26, 809792), (32, 657956), (52, 404896), (64, 328978), (104, 202448), (128, 164489), (208, 101224), (416, 50612), (832, 25306), (1664, 12653)]