1801.0000000

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 5134272

約数和(自身を除く): 1737573

約数列:

[1, 3, 9, 43, 67, 129, 131, 201, 387, 393, 603, 1179, 2881, 5633, 8643, 8777, 16899, 25929, 26331, 50697, 78993, 377411, 1132233, 3396699]

約数ペア:

[(1, 3396699), (3, 1132233), (9, 377411), (43, 78993), (67, 50697), (129, 26331), (131, 25929), (201, 16899), (387, 8777), (393, 8643), (603, 5633), (1179, 2881)]