18785823

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 29990400

約数和(自身を除く): 11204577

約数列:

[1, 3, 7, 21, 29, 87, 109, 203, 283, 327, 609, 763, 849, 1981, 2289, 3161, 5943, 8207, 9483, 22127, 24621, 30847, 57449, 66381, 92541, 172347, 215929, 647787, 894563, 2683689, 6261941, 18785823]

約数ペア:

[(1, 18785823), (3, 6261941), (7, 2683689), (21, 894563), (29, 647787), (87, 215929), (109, 172347), (203, 92541), (283, 66381), (327, 57449), (609, 30847), (763, 24621), (849, 22127), (1981, 9483), (2289, 8207), (3161, 5943)]