28376973

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{1571}}^1$

素因数の和:1806

約数の個数: 20

約数和(自身を含む): 42607488

約数和(自身を除く): 14230515

約数列:

[1, 3, 9, 27, 81, 223, 669, 1571, 2007, 4713, 6021, 14139, 18063, 42417, 127251, 350333, 1050999, 3152997, 9458991, 28376973]

約数ペア:

[(1, 28376973), (3, 9458991), (9, 3152997), (27, 1050999), (81, 350333), (223, 127251), (669, 42417), (1571, 18063), (2007, 14139), (4713, 6021)]