211291254

素因数分解:

$2^1\times 3^4\times {\mathrm{1304267}}^1$

素因数の和:1304281

約数の個数: 20

約数和(自身を含む): 473449284

約数和(自身を除く): 262158030

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 1304267, 2608534, 3912801, 7825602, 11738403, 23476806, 35215209, 70430418, 105645627, 211291254]

約数ペア:

[(1, 211291254), (2, 105645627), (3, 70430418), (6, 35215209), (9, 23476806), (18, 11738403), (27, 7825602), (54, 3912801), (81, 2608534), (162, 1304267)]