20621574

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 48960000

約数和(自身を除く): 28338426

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 101, 114, 171, 199, 202, 303, 342, 398, 513, 597, 606, 909, 1026, 1194, 1791, 1818, 1919, 2727, 3582, 3781, 3838, 5373, 5454, 5757, 7562, 10746, 11343, 11514, 17271, 20099, 22686, 34029, 34542, 40198, 51813, 60297, 68058, 102087, 103626, 120594, 180891, 204174, 361782, 381881, 542673, 763762, 1085346, 1145643, 2291286, 3436929, 6873858, 10310787, 20621574]

約数ペア:

[(1, 20621574), (2, 10310787), (3, 6873858), (6, 3436929), (9, 2291286), (18, 1145643), (19, 1085346), (27, 763762), (38, 542673), (54, 381881), (57, 361782), (101, 204174), (114, 180891), (171, 120594), (199, 103626), (202, 102087), (303, 68058), (342, 60297), (398, 51813), (513, 40198), (597, 34542), (606, 34029), (909, 22686), (1026, 20099), (1194, 17271), (1791, 11514), (1818, 11343), (1919, 10746), (2727, 7562), (3582, 5757), (3781, 5454), (3838, 5373)]