18864738

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 45372096

約数和(自身を除く): 26507358

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 61, 69, 81, 83, 122, 138, 162, 166, 183, 207, 249, 366, 414, 498, 549, 621, 747, 1098, 1242, 1403, 1494, 1647, 1863, 1909, 2241, 2806, 3294, 3726, 3818, 4209, 4482, 4941, 5063, 5727, 6723, 8418, 9882, 10126, 11454, 12627, 13446, 15189, 17181, 25254, 30378, 34362, 37881, 45567, 51543, 75762, 91134, 103086, 113643, 116449, 136701, 154629, 227286, 232898, 273402, 309258, 349347, 410103, 698694, 820206, 1048041, 2096082, 3144123, 6288246, 9432369, 18864738]

約数ペア:

[(1, 18864738), (2, 9432369), (3, 6288246), (6, 3144123), (9, 2096082), (18, 1048041), (23, 820206), (27, 698694), (46, 410103), (54, 349347), (61, 309258), (69, 273402), (81, 232898), (83, 227286), (122, 154629), (138, 136701), (162, 116449), (166, 113643), (183, 103086), (207, 91134), (249, 75762), (366, 51543), (414, 45567), (498, 37881), (549, 34362), (621, 30378), (747, 25254), (1098, 17181), (1242, 15189), (1403, 13446), (1494, 12627), (1647, 11454), (1863, 10126), (1909, 9882), (2241, 8418), (2806, 6723), (3294, 5727), (3726, 5063), (3818, 4941), (4209, 4482)]