21807144

素因数分解:

$2^3\times 3^4\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 62051220

約数和(自身を除く): 40244076

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 73, 81, 108, 146, 162, 216, 219, 292, 324, 438, 461, 584, 648, 657, 876, 922, 1314, 1383, 1752, 1844, 1971, 2628, 2766, 3688, 3942, 4149, 5256, 5532, 5913, 7884, 8298, 11064, 11826, 12447, 15768, 16596, 23652, 24894, 33192, 33653, 37341, 47304, 49788, 67306, 74682, 99576, 100959, 134612, 149364, 201918, 269224, 298728, 302877, 403836, 605754, 807672, 908631, 1211508, 1817262, 2423016, 2725893, 3634524, 5451786, 7269048, 10903572, 21807144]

約数ペア:

[(1, 21807144), (2, 10903572), (3, 7269048), (4, 5451786), (6, 3634524), (8, 2725893), (9, 2423016), (12, 1817262), (18, 1211508), (24, 908631), (27, 807672), (36, 605754), (54, 403836), (72, 302877), (73, 298728), (81, 269224), (108, 201918), (146, 149364), (162, 134612), (216, 100959), (219, 99576), (292, 74682), (324, 67306), (438, 49788), (461, 47304), (584, 37341), (648, 33653), (657, 33192), (876, 24894), (922, 23652), (1314, 16596), (1383, 15768), (1752, 12447), (1844, 11826), (1971, 11064), (2628, 8298), (2766, 7884), (3688, 5913), (3942, 5532), (4149, 5256)]