21056193

素因数分解:

$3^5\times {\mathrm{73}}^1\times {\mathrm{1187}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 31999968

約数和(自身を除く): 10943775

約数列:

[1, 3, 9, 27, 73, 81, 219, 243, 657, 1187, 1971, 3561, 5913, 10683, 17739, 32049, 86651, 96147, 259953, 288441, 779859, 2339577, 7018731, 21056193]

約数ペア:

[(1, 21056193), (3, 7018731), (9, 2339577), (27, 779859), (73, 288441), (81, 259953), (219, 96147), (243, 86651), (657, 32049), (1187, 17739), (1971, 10683), (3561, 5913)]