18581504

素因数分解:

$2^{11}\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 38198160

約数和(自身を除く): 19616656

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 211, 256, 344, 422, 512, 688, 844, 1024, 1376, 1688, 2048, 2752, 3376, 5504, 6752, 9073, 11008, 13504, 18146, 22016, 27008, 36292, 44032, 54016, 72584, 88064, 108032, 145168, 216064, 290336, 432128, 580672, 1161344, 2322688, 4645376, 9290752, 18581504]

約数ペア:

[(1, 18581504), (2, 9290752), (4, 4645376), (8, 2322688), (16, 1161344), (32, 580672), (43, 432128), (64, 290336), (86, 216064), (128, 145168), (172, 108032), (211, 88064), (256, 72584), (344, 54016), (422, 44032), (512, 36292), (688, 27008), (844, 22016), (1024, 18146), (1376, 13504), (1688, 11008), (2048, 9073), (2752, 6752), (3376, 5504)]