216229804

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{406447}}^1$

素因数の和:406477

約数の個数: 24

約数和(自身を含む): 455221760

約数和(自身を除く): 238991956

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 406447, 812894, 1625788, 2845129, 5690258, 7722493, 11380516, 15444986, 30889972, 54057451, 108114902, 216229804]

約数ペア:

[(1, 216229804), (2, 108114902), (4, 54057451), (7, 30889972), (14, 15444986), (19, 11380516), (28, 7722493), (38, 5690258), (76, 2845129), (133, 1625788), (266, 812894), (532, 406447)]