21385216

素因数分解:

$2^{12}\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:274

約数の個数: 52

約数和(自身を含む): 44821152

約数和(自身を除く): 23435936

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 227, 256, 368, 454, 512, 736, 908, 1024, 1472, 1816, 2048, 2944, 3632, 4096, 5221, 5888, 7264, 10442, 11776, 14528, 20884, 23552, 29056, 41768, 47104, 58112, 83536, 94208, 116224, 167072, 232448, 334144, 464896, 668288, 929792, 1336576, 2673152, 5346304, 10692608, 21385216]

約数ペア:

[(1, 21385216), (2, 10692608), (4, 5346304), (8, 2673152), (16, 1336576), (23, 929792), (32, 668288), (46, 464896), (64, 334144), (92, 232448), (128, 167072), (184, 116224), (227, 94208), (256, 83536), (368, 58112), (454, 47104), (512, 41768), (736, 29056), (908, 23552), (1024, 20884), (1472, 14528), (1816, 11776), (2048, 10442), (2944, 7264), (3632, 5888), (4096, 5221)]