21029187

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 9997053

約数列:

[1, 3, 17, 41, 51, 89, 113, 123, 267, 339, 697, 1513, 1921, 2091, 3649, 4539, 4633, 5763, 10057, 10947, 13899, 30171, 62033, 78761, 170969, 186099, 236283, 412337, 512907, 1237011, 7009729, 21029187]

約数ペア:

[(1, 21029187), (3, 7009729), (17, 1237011), (41, 512907), (51, 412337), (89, 236283), (113, 186099), (123, 170969), (267, 78761), (339, 62033), (697, 30171), (1513, 13899), (1921, 10947), (2091, 10057), (3649, 5763), (4539, 4633)]