21685586

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15737}}^1$

素因数の和:15805

約数の個数: 16

約数和(自身を含む): 35693784

約数和(自身を除く): 14008198

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15737, 31474, 204581, 409162, 834061, 1668122, 10842793, 21685586]

約数ペア:

[(1, 21685586), (2, 10842793), (13, 1668122), (26, 834061), (53, 409162), (106, 204581), (689, 31474), (1378, 15737)]