30940987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21149}}^1$

素因数の和:21186

約数の個数: 16

約数和(自身を含む): 40608000

約数和(自身を除く): 9667013

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 21149, 148043, 232639, 401831, 1628473, 2812817, 4420141, 30940987]

約数ペア:

[(1, 30940987), (7, 4420141), (11, 2812817), (19, 1628473), (77, 401831), (133, 232639), (209, 148043), (1463, 21149)]