18681872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{593}}^1$

素因数の和:791

約数の個数: 40

約数和(自身を含む): 39774240

約数和(自身を除く): 21092368

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 179, 358, 593, 716, 1186, 1432, 1969, 2372, 2864, 3938, 4744, 6523, 7876, 9488, 13046, 15752, 26092, 31504, 52184, 104368, 106147, 212294, 424588, 849176, 1167617, 1698352, 2335234, 4670468, 9340936, 18681872]

約数ペア:

[(1, 18681872), (2, 9340936), (4, 4670468), (8, 2335234), (11, 1698352), (16, 1167617), (22, 849176), (44, 424588), (88, 212294), (176, 106147), (179, 104368), (358, 52184), (593, 31504), (716, 26092), (1186, 15752), (1432, 13046), (1969, 9488), (2372, 7876), (2864, 6523), (3938, 4744)]