21693375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1753}}^1$

素因数の和:1785

約数の個数: 48

約数和(自身を含む): 42685344

約数和(自身を除く): 20991969

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1125, 1375, 1753, 2475, 4125, 5259, 8765, 12375, 15777, 19283, 26295, 43825, 57849, 78885, 96415, 131475, 173547, 219125, 289245, 394425, 482075, 657375, 867735, 1446225, 1972125, 2410375, 4338675, 7231125, 21693375]

約数ペア:

[(1, 21693375), (3, 7231125), (5, 4338675), (9, 2410375), (11, 1972125), (15, 1446225), (25, 867735), (33, 657375), (45, 482075), (55, 394425), (75, 289245), (99, 219125), (125, 173547), (165, 131475), (225, 96415), (275, 78885), (375, 57849), (495, 43825), (825, 26295), (1125, 19283), (1375, 15777), (1753, 12375), (2475, 8765), (4125, 5259)]