1947253

素因数分解:

$7^1\times {\mathrm{11}}^4\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 20

約数和(自身を含む): 2576800

約数和(自身を除く): 629547

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1331, 1463, 2299, 9317, 14641, 16093, 25289, 102487, 177023, 278179, 1947253]

約数ペア:

[(1, 1947253), (7, 278179), (11, 177023), (19, 102487), (77, 25289), (121, 16093), (133, 14641), (209, 9317), (847, 2299), (1331, 1463)]