16991793

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20747}}^1$

素因数の和:20773

約数の個数: 24

約数和(自身を含む): 30209088

約数和(自身を除く): 13217295

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 20747, 62241, 145229, 186723, 269711, 435687, 809133, 1307061, 1887977, 2427399, 5663931, 16991793]

約数ペア:

[(1, 16991793), (3, 5663931), (7, 2427399), (9, 1887977), (13, 1307061), (21, 809133), (39, 435687), (63, 269711), (91, 186723), (117, 145229), (273, 62241), (819, 20747)]