21646695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 42771456

約数和(自身を除く): 21124761

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 67, 85, 105, 119, 181, 201, 255, 335, 357, 469, 543, 595, 905, 1005, 1139, 1267, 1407, 1785, 2345, 2715, 3077, 3417, 3801, 5695, 6335, 7035, 7973, 9231, 12127, 15385, 17085, 19005, 21539, 23919, 36381, 39865, 46155, 60635, 64617, 84889, 107695, 119595, 181905, 206159, 254667, 323085, 424445, 618477, 1030795, 1273335, 1443113, 3092385, 4329339, 7215565, 21646695]

約数ペア:

[(1, 21646695), (3, 7215565), (5, 4329339), (7, 3092385), (15, 1443113), (17, 1273335), (21, 1030795), (35, 618477), (51, 424445), (67, 323085), (85, 254667), (105, 206159), (119, 181905), (181, 119595), (201, 107695), (255, 84889), (335, 64617), (357, 60635), (469, 46155), (543, 39865), (595, 36381), (905, 23919), (1005, 21539), (1139, 19005), (1267, 17085), (1407, 15385), (1785, 12127), (2345, 9231), (2715, 7973), (3077, 7035), (3417, 6335), (3801, 5695)]