18994688

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{1613}}^1$

素因数の和:1654

約数の個数: 40

約数和(自身を含む): 39626928

約数和(自身を除く): 20632240

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 1472, 1613, 2944, 3226, 5888, 6452, 11776, 12904, 25808, 37099, 51616, 74198, 103232, 148396, 206464, 296792, 412928, 593584, 825856, 1187168, 2374336, 4748672, 9497344, 18994688]

約数ペア:

[(1, 18994688), (2, 9497344), (4, 4748672), (8, 2374336), (16, 1187168), (23, 825856), (32, 593584), (46, 412928), (64, 296792), (92, 206464), (128, 148396), (184, 103232), (256, 74198), (368, 51616), (512, 37099), (736, 25808), (1472, 12904), (1613, 11776), (2944, 6452), (3226, 5888)]