217256418

素因数分解:

$2^1\times 3^4\times {\mathrm{1341089}}^1$

素因数の和:1341103

約数の個数: 20

約数和(自身を含む): 486815670

約数和(自身を除く): 269559252

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 1341089, 2682178, 4023267, 8046534, 12069801, 24139602, 36209403, 72418806, 108628209, 217256418]

約数ペア:

[(1, 217256418), (2, 108628209), (3, 72418806), (6, 36209403), (9, 24139602), (18, 12069801), (27, 8046534), (54, 4023267), (81, 2682178), (162, 1341089)]