278320221

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{5413}}^1$

素因数の和:5645

約数の個数: 24

約数和(自身を含む): 418069080

約数和(自身を除く): 139748859

約数列:

[1, 3, 9, 29, 87, 197, 261, 591, 1773, 5413, 5713, 16239, 17139, 48717, 51417, 156977, 470931, 1066361, 1412793, 3199083, 9597249, 30924469, 92773407, 278320221]

約数ペア:

[(1, 278320221), (3, 92773407), (9, 30924469), (29, 9597249), (87, 3199083), (197, 1412793), (261, 1066361), (591, 470931), (1773, 156977), (5413, 51417), (5713, 48717), (16239, 17139)]