12210401

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 14688000

約数和(自身を除く): 2477599

約数列:

[1, 7, 23, 149, 161, 509, 1043, 3427, 3563, 11707, 23989, 75841, 81949, 530887, 1744343, 12210401]

約数ペア:

[(1, 12210401), (7, 1744343), (23, 530887), (149, 81949), (161, 75841), (509, 23989), (1043, 11707), (3427, 3563)]