18729728

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{3181}}^1$

素因数の和:3220

約数の個数: 36

約数和(自身を含む): 39024048

約数和(自身を除く): 20294320

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 736, 1472, 2944, 3181, 5888, 6362, 12724, 25448, 50896, 73163, 101792, 146326, 203584, 292652, 407168, 585304, 814336, 1170608, 2341216, 4682432, 9364864, 18729728]

約数ペア:

[(1, 18729728), (2, 9364864), (4, 4682432), (8, 2341216), (16, 1170608), (23, 814336), (32, 585304), (46, 407168), (64, 292652), (92, 203584), (128, 146326), (184, 101792), (256, 73163), (368, 50896), (736, 25448), (1472, 12724), (2944, 6362), (3181, 5888)]