16681947

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:379

約数の個数: 24

約数和(自身を含む): 24049152

約数和(自身を除く): 7367205

約数列:

[1, 3, 17, 51, 71, 213, 271, 289, 813, 867, 1207, 3621, 4607, 13821, 19241, 20519, 57723, 61557, 78319, 234957, 327097, 981291, 5560649, 16681947]

約数ペア:

[(1, 16681947), (3, 5560649), (17, 981291), (51, 327097), (71, 234957), (213, 78319), (271, 61557), (289, 57723), (813, 20519), (867, 19241), (1207, 13821), (3621, 4607)]