78406321

素因数分解:

$7^2\times {\mathrm{821}}^1\times {\mathrm{1949}}^1$

素因数の和:2784

約数の個数: 12

約数和(自身を含む): 91365300

約数和(自身を除く): 12958979

約数列:

[1, 7, 49, 821, 1949, 5747, 13643, 40229, 95501, 1600129, 11200903, 78406321]

約数ペア:

[(1, 78406321), (7, 11200903), (49, 1600129), (821, 95501), (1949, 40229), (5747, 13643)]