21041865

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35969}}^1$

素因数の和:35993

約数の個数: 24

約数和(自身を含む): 39279240

約数和(自身を除く): 18237375

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35969, 107907, 179845, 323721, 467597, 539535, 1402791, 1618605, 2337985, 4208373, 7013955, 21041865]

約数ペア:

[(1, 21041865), (3, 7013955), (5, 4208373), (9, 2337985), (13, 1618605), (15, 1402791), (39, 539535), (45, 467597), (65, 323721), (117, 179845), (195, 107907), (585, 35969)]