212706291

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{67979}}^1$

素因数の和:68138

約数の個数: 16

約数和(自身を含む): 326304000

約数和(自身を除く): 113597709

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 67979, 203937, 475853, 1427559, 10128871, 30386613, 70902097, 212706291]

約数ペア:

[(1, 212706291), (3, 70902097), (7, 30386613), (21, 10128871), (149, 1427559), (447, 475853), (1043, 203937), (3129, 67979)]