17945613

素因数分解:

$3^2\times 7^2\times {\mathrm{40693}}^1$

素因数の和:40713

約数の個数: 18

約数和(自身を含む): 30154254

約数和(自身を除く): 12208641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 40693, 122079, 284851, 366237, 854553, 1993957, 2563659, 5981871, 17945613]

約数ペア:

[(1, 17945613), (3, 5981871), (7, 2563659), (9, 1993957), (21, 854553), (49, 366237), (63, 284851), (147, 122079), (441, 40693)]