18707325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2741}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 38080896

約数和(自身を除く): 19373571

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 2741, 6825, 8223, 13705, 19187, 35633, 41115, 57561, 68525, 95935, 106899, 178165, 205575, 249431, 287805, 479675, 534495, 748293, 890825, 1247155, 1439025, 2672475, 3741465, 6235775, 18707325]

約数ペア:

[(1, 18707325), (3, 6235775), (5, 3741465), (7, 2672475), (13, 1439025), (15, 1247155), (21, 890825), (25, 748293), (35, 534495), (39, 479675), (65, 287805), (75, 249431), (91, 205575), (105, 178165), (175, 106899), (195, 95935), (273, 68525), (325, 57561), (455, 41115), (525, 35633), (975, 19187), (1365, 13705), (2275, 8223), (2741, 6825)]