19893993

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22031}}^1$

素因数の和:22084

約数の個数: 16

約数和(自身を含む): 31021056

約数和(自身を除く): 11127063

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22031, 66093, 154217, 462651, 947333, 2841999, 6631331, 19893993]

約数ペア:

[(1, 19893993), (3, 6631331), (7, 2841999), (21, 947333), (43, 462651), (129, 154217), (301, 66093), (903, 22031)]