78727221

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{57173}}^1$

素因数の和:57202

約数の個数: 20

約数和(自身を含む): 124524972

約数和(自身を除く): 45797751

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 57173, 171519, 514557, 971941, 1543671, 2915823, 4631013, 8747469, 26242407, 78727221]

約数ペア:

[(1, 78727221), (3, 26242407), (9, 8747469), (17, 4631013), (27, 2915823), (51, 1543671), (81, 971941), (153, 514557), (459, 171519), (1377, 57173)]