2145123

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:456

約数の個数: 20

約数和(自身を含む): 3258288

約数和(自身を除く): 1113165

約数列:

[1, 3, 9, 27, 71, 81, 213, 373, 639, 1119, 1917, 3357, 5751, 10071, 26483, 30213, 79449, 238347, 715041, 2145123]

約数ペア:

[(1, 2145123), (3, 715041), (9, 238347), (27, 79449), (71, 30213), (81, 26483), (213, 10071), (373, 5751), (639, 3357), (1119, 1917)]