21024315

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{433}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 39809952

約数和(自身を除く): 18785637

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 83, 117, 195, 249, 415, 433, 585, 747, 1079, 1245, 1299, 2165, 3237, 3735, 3897, 5395, 5629, 6495, 9711, 16185, 16887, 19485, 28145, 35939, 48555, 50661, 84435, 107817, 179695, 253305, 323451, 467207, 539085, 1401621, 1617255, 2336035, 4204863, 7008105, 21024315]

約数ペア:

[(1, 21024315), (3, 7008105), (5, 4204863), (9, 2336035), (13, 1617255), (15, 1401621), (39, 539085), (45, 467207), (65, 323451), (83, 253305), (117, 179695), (195, 107817), (249, 84435), (415, 50661), (433, 48555), (585, 35939), (747, 28145), (1079, 19485), (1245, 16887), (1299, 16185), (2165, 9711), (3237, 6495), (3735, 5629), (3897, 5395)]