21389443928

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1\times {\mathrm{2713}}^1$

素因数の和:4764

約数の個数: 64

約数和(自身を含む): 43966800000

約数和(自身を除く): 22577356072

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 232, 493, 986, 1972, 1999, 2713, 3944, 3998, 5426, 7996, 10852, 15992, 21704, 33983, 46121, 57971, 67966, 78677, 92242, 115942, 135932, 157354, 184484, 231884, 271864, 314708, 368968, 463768, 629416, 985507, 1337509, 1971014, 2675018, 3942028, 5350036, 5423287, 7884056, 10700072, 10846574, 21693148, 43386296, 92195879, 157275323, 184391758, 314550646, 368783516, 629101292, 737567032, 1258202584, 2673680491, 5347360982, 10694721964, 21389443928]

約数ペア:

[(1, 21389443928), (2, 10694721964), (4, 5347360982), (8, 2673680491), (17, 1258202584), (29, 737567032), (34, 629101292), (58, 368783516), (68, 314550646), (116, 184391758), (136, 157275323), (232, 92195879), (493, 43386296), (986, 21693148), (1972, 10846574), (1999, 10700072), (2713, 7884056), (3944, 5423287), (3998, 5350036), (5426, 3942028), (7996, 2675018), (10852, 1971014), (15992, 1337509), (21704, 985507), (33983, 629416), (46121, 463768), (57971, 368968), (67966, 314708), (78677, 271864), (92242, 231884), (115942, 184484), (135932, 157354)]