21052188

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:907

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 36736452

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 41, 51, 68, 82, 102, 123, 153, 164, 204, 246, 306, 369, 492, 612, 697, 738, 839, 1394, 1476, 1678, 2091, 2517, 2788, 3356, 4182, 5034, 6273, 7551, 8364, 10068, 12546, 14263, 15102, 25092, 28526, 30204, 34399, 42789, 57052, 68798, 85578, 103197, 128367, 137596, 171156, 206394, 256734, 309591, 412788, 513468, 584783, 619182, 1169566, 1238364, 1754349, 2339132, 3508698, 5263047, 7017396, 10526094, 21052188]

約数ペア:

[(1, 21052188), (2, 10526094), (3, 7017396), (4, 5263047), (6, 3508698), (9, 2339132), (12, 1754349), (17, 1238364), (18, 1169566), (34, 619182), (36, 584783), (41, 513468), (51, 412788), (68, 309591), (82, 256734), (102, 206394), (123, 171156), (153, 137596), (164, 128367), (204, 103197), (246, 85578), (306, 68798), (369, 57052), (492, 42789), (612, 34399), (697, 30204), (738, 28526), (839, 25092), (1394, 15102), (1476, 14263), (1678, 12546), (2091, 10068), (2517, 8364), (2788, 7551), (3356, 6273), (4182, 5034)]