21581136

素因数分解:

$2^4\times 3^2\times {\mathrm{73}}^1\times {\mathrm{2053}}^1$

素因数の和:2140

約数の個数: 60

約数和(自身を含む): 61254388

約数和(自身を除く): 39673252

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 73, 144, 146, 219, 292, 438, 584, 657, 876, 1168, 1314, 1752, 2053, 2628, 3504, 4106, 5256, 6159, 8212, 10512, 12318, 16424, 18477, 24636, 32848, 36954, 49272, 73908, 98544, 147816, 149869, 295632, 299738, 449607, 599476, 899214, 1198952, 1348821, 1798428, 2397904, 2697642, 3596856, 5395284, 7193712, 10790568, 21581136]

約数ペア:

[(1, 21581136), (2, 10790568), (3, 7193712), (4, 5395284), (6, 3596856), (8, 2697642), (9, 2397904), (12, 1798428), (16, 1348821), (18, 1198952), (24, 899214), (36, 599476), (48, 449607), (72, 299738), (73, 295632), (144, 149869), (146, 147816), (219, 98544), (292, 73908), (438, 49272), (584, 36954), (657, 32848), (876, 24636), (1168, 18477), (1314, 16424), (1752, 12318), (2053, 10512), (2628, 8212), (3504, 6159), (4106, 5256)]