19809498

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{76781}}^1$

素因数の和:76829

約数の個数: 16

約数和(自身を含む): 40540896

約数和(自身を除く): 20731398

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 76781, 153562, 230343, 460686, 3301583, 6603166, 9904749, 19809498]

約数ペア:

[(1, 19809498), (2, 9904749), (3, 6603166), (6, 3301583), (43, 460686), (86, 230343), (129, 153562), (258, 76781)]