19880498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 14679502

約数列:

[1, 2, 11, 19, 22, 38, 199, 209, 239, 398, 418, 478, 2189, 2629, 3781, 4378, 4541, 5258, 7562, 9082, 41591, 47561, 49951, 83182, 95122, 99902, 523171, 903659, 1046342, 1807318, 9940249, 19880498]

約数ペア:

[(1, 19880498), (2, 9940249), (11, 1807318), (19, 1046342), (22, 903659), (38, 523171), (199, 99902), (209, 95122), (239, 83182), (398, 49951), (418, 47561), (478, 41591), (2189, 9082), (2629, 7562), (3781, 5258), (4378, 4541)]