18767728

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9857}}^1$

素因数の和:9889

約数の個数: 40

約数和(自身を含む): 44006112

約数和(自身を除く): 25238384

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 9857, 19714, 39428, 68999, 78856, 137998, 157712, 167569, 275996, 335138, 551992, 670276, 1103984, 1172983, 1340552, 2345966, 2681104, 4691932, 9383864, 18767728]

約数ペア:

[(1, 18767728), (2, 9383864), (4, 4691932), (7, 2681104), (8, 2345966), (14, 1340552), (16, 1172983), (17, 1103984), (28, 670276), (34, 551992), (56, 335138), (68, 275996), (112, 167569), (119, 157712), (136, 137998), (238, 78856), (272, 68999), (476, 39428), (952, 19714), (1904, 9857)]