27928887

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 44047872

約数和(自身を除く): 16118985

約数列:

[1, 3, 7, 21, 43, 129, 157, 197, 301, 471, 591, 903, 1099, 1379, 3297, 4137, 6751, 8471, 20253, 25413, 30929, 47257, 59297, 92787, 141771, 177891, 216503, 649509, 1329947, 3989841, 9309629, 27928887]

約数ペア:

[(1, 27928887), (3, 9309629), (7, 3989841), (21, 1329947), (43, 649509), (129, 216503), (157, 177891), (197, 141771), (301, 92787), (471, 59297), (591, 47257), (903, 30929), (1099, 25413), (1379, 20253), (3297, 8471), (4137, 6751)]