1780976727

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{111611}}^1$

素因数の和:111820

約数の個数: 20

約数和(自身を含む): 2674000296

約数和(自身を除く): 893023569

約数列:

[1, 3, 9, 27, 81, 197, 591, 1773, 5319, 15957, 111611, 334833, 1004499, 3013497, 9040491, 21987367, 65962101, 197886303, 593658909, 1780976727]

約数ペア:

[(1, 1780976727), (3, 593658909), (9, 197886303), (27, 65962101), (81, 21987367), (197, 9040491), (591, 3013497), (1773, 1004499), (5319, 334833), (15957, 111611)]