21654516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1093}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 54892544

約数和(自身を除く): 33238028

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 127, 156, 254, 381, 508, 762, 1093, 1524, 1651, 2186, 3279, 3302, 4372, 4953, 6558, 6604, 9906, 13116, 14209, 19812, 28418, 42627, 56836, 85254, 138811, 170508, 277622, 416433, 555244, 832866, 1665732, 1804543, 3609086, 5413629, 7218172, 10827258, 21654516]

約数ペア:

[(1, 21654516), (2, 10827258), (3, 7218172), (4, 5413629), (6, 3609086), (12, 1804543), (13, 1665732), (26, 832866), (39, 555244), (52, 416433), (78, 277622), (127, 170508), (156, 138811), (254, 85254), (381, 56836), (508, 42627), (762, 28418), (1093, 19812), (1524, 14209), (1651, 13116), (2186, 9906), (3279, 6604), (3302, 6558), (4372, 4953)]