21039048

素因数分解:

$2^3\times 3^3\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 58824000

約数和(自身を除く): 37784952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 257, 379, 514, 758, 771, 1028, 1137, 1516, 1542, 2056, 2274, 2313, 3032, 3084, 3411, 4548, 4626, 6168, 6822, 6939, 9096, 9252, 10233, 13644, 13878, 18504, 20466, 27288, 27756, 40932, 55512, 81864, 97403, 194806, 292209, 389612, 584418, 779224, 876627, 1168836, 1753254, 2337672, 2629881, 3506508, 5259762, 7013016, 10519524, 21039048]

約数ペア:

[(1, 21039048), (2, 10519524), (3, 7013016), (4, 5259762), (6, 3506508), (8, 2629881), (9, 2337672), (12, 1753254), (18, 1168836), (24, 876627), (27, 779224), (36, 584418), (54, 389612), (72, 292209), (108, 194806), (216, 97403), (257, 81864), (379, 55512), (514, 40932), (758, 27756), (771, 27288), (1028, 20466), (1137, 18504), (1516, 13878), (1542, 13644), (2056, 10233), (2274, 9252), (2313, 9096), (3032, 6939), (3084, 6822), (3411, 6168), (4548, 4626)]