28257138

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1327}}^1$

素因数の和:1368

約数の個数: 72

約数和(自身を含む): 75823488

約数和(自身を除く): 47566350

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 169, 182, 234, 273, 338, 507, 546, 819, 1014, 1183, 1327, 1521, 1638, 2366, 2654, 3042, 3549, 3981, 7098, 7962, 9289, 10647, 11943, 17251, 18578, 21294, 23886, 27867, 34502, 51753, 55734, 83601, 103506, 120757, 155259, 167202, 224263, 241514, 310518, 362271, 448526, 672789, 724542, 1086813, 1345578, 1569841, 2018367, 2173626, 3139682, 4036734, 4709523, 9419046, 14128569, 28257138]

約数ペア:

[(1, 28257138), (2, 14128569), (3, 9419046), (6, 4709523), (7, 4036734), (9, 3139682), (13, 2173626), (14, 2018367), (18, 1569841), (21, 1345578), (26, 1086813), (39, 724542), (42, 672789), (63, 448526), (78, 362271), (91, 310518), (117, 241514), (126, 224263), (169, 167202), (182, 155259), (234, 120757), (273, 103506), (338, 83601), (507, 55734), (546, 51753), (819, 34502), (1014, 27867), (1183, 23886), (1327, 21294), (1521, 18578), (1638, 17251), (2366, 11943), (2654, 10647), (3042, 9289), (3549, 7962), (3981, 7098)]