18021808

素因数分解:

$2^4\times 7^2\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:330

約数の個数: 60

約数和(自身を含む): 41164032

約数和(自身を除く): 23142224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 127, 181, 196, 254, 362, 392, 508, 724, 784, 889, 1016, 1267, 1448, 1778, 2032, 2534, 2896, 3556, 5068, 6223, 7112, 8869, 10136, 12446, 14224, 17738, 20272, 22987, 24892, 35476, 45974, 49784, 70952, 91948, 99568, 141904, 160909, 183896, 321818, 367792, 643636, 1126363, 1287272, 2252726, 2574544, 4505452, 9010904, 18021808]

約数ペア:

[(1, 18021808), (2, 9010904), (4, 4505452), (7, 2574544), (8, 2252726), (14, 1287272), (16, 1126363), (28, 643636), (49, 367792), (56, 321818), (98, 183896), (112, 160909), (127, 141904), (181, 99568), (196, 91948), (254, 70952), (362, 49784), (392, 45974), (508, 35476), (724, 24892), (784, 22987), (889, 20272), (1016, 17738), (1267, 14224), (1448, 12446), (1778, 10136), (2032, 8869), (2534, 7112), (2896, 6223), (3556, 5068)]