126654321

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{4229}}^1$

素因数の和:4448

約数の個数: 16

約数和(自身を含む): 172584000

約数和(自身を除く): 45929679

約数列:

[1, 3, 67, 149, 201, 447, 4229, 9983, 12687, 29949, 283343, 630121, 850029, 1890363, 42218107, 126654321]

約数ペア:

[(1, 126654321), (3, 42218107), (67, 1890363), (149, 850029), (201, 630121), (447, 283343), (4229, 29949), (9983, 12687)]