21375188

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 20718892

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 79, 92, 158, 173, 316, 346, 391, 692, 782, 1343, 1564, 1817, 2686, 2941, 3634, 3979, 5372, 5882, 7268, 7958, 11764, 13667, 15916, 27334, 30889, 54668, 61778, 67643, 123556, 135286, 232339, 270572, 314341, 464678, 628682, 929356, 1257364, 5343797, 10687594, 21375188]

約数ペア:

[(1, 21375188), (2, 10687594), (4, 5343797), (17, 1257364), (23, 929356), (34, 628682), (46, 464678), (68, 314341), (79, 270572), (92, 232339), (158, 135286), (173, 123556), (316, 67643), (346, 61778), (391, 54668), (692, 30889), (782, 27334), (1343, 15916), (1564, 13667), (1817, 11764), (2686, 7958), (2941, 7268), (3634, 5882), (3979, 5372)]