17807121

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{1151}}^1$

素因数の和:1354

約数の個数: 20

約数和(自身を含む): 26763264

約数和(自身を除く): 8956143

約数列:

[1, 3, 9, 27, 81, 191, 573, 1151, 1719, 3453, 5157, 10359, 15471, 31077, 93231, 219841, 659523, 1978569, 5935707, 17807121]

約数ペア:

[(1, 17807121), (3, 5935707), (9, 1978569), (27, 659523), (81, 219841), (191, 93231), (573, 31077), (1151, 15471), (1719, 10359), (3453, 5157)]