81000909

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{74381}}^1$

素因数の和:74409

約数の個数: 18

約数和(自身を含む): 128606478

約数和(自身を除く): 47605569

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 74381, 223143, 669429, 818191, 2454573, 7363719, 9000101, 27000303, 81000909]

約数ペア:

[(1, 81000909), (3, 27000303), (9, 9000101), (11, 7363719), (33, 2454573), (99, 818191), (121, 669429), (363, 223143), (1089, 74381)]