39904921

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1987}}^1$

素因数の和:2164

約数の個数: 16

約数和(自身を含む): 48348160

約数和(自身を除く): 8443239

約数列:

[1, 7, 19, 133, 151, 1057, 1987, 2869, 13909, 20083, 37753, 264271, 300037, 2100259, 5700703, 39904921]

約数ペア:

[(1, 39904921), (7, 5700703), (19, 2100259), (133, 300037), (151, 264271), (1057, 37753), (1987, 20083), (2869, 13909)]