18640577

素因数分解:

${\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 16

約数和(自身を含む): 20295360

約数和(自身を除く): 1654783

約数列:

[1, 19, 53, 107, 173, 1007, 2033, 3287, 5671, 9169, 18511, 107749, 174211, 351709, 981083, 18640577]

約数ペア:

[(1, 18640577), (19, 981083), (53, 351709), (107, 174211), (173, 107749), (1007, 18511), (2033, 9169), (3287, 5671)]