821332

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 1542240

約数和(自身を除く): 720908

約数列:

[1, 2, 4, 19, 38, 76, 101, 107, 202, 214, 404, 428, 1919, 2033, 3838, 4066, 7676, 8132, 10807, 21614, 43228, 205333, 410666, 821332]

約数ペア:

[(1, 821332), (2, 410666), (4, 205333), (19, 43228), (38, 21614), (76, 10807), (101, 8132), (107, 7676), (202, 4066), (214, 3838), (404, 2033), (428, 1919)]