27891255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{541}}^1$

素因数の和:1047

約数の個数: 32

約数和(自身を含む): 51199488

約数和(自身を除く): 23308233

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 491, 541, 1473, 1623, 2455, 2705, 3437, 3787, 7365, 8115, 10311, 11361, 17185, 18935, 51555, 56805, 265631, 796893, 1328155, 1859417, 3984465, 5578251, 9297085, 27891255]

約数ペア:

[(1, 27891255), (3, 9297085), (5, 5578251), (7, 3984465), (15, 1859417), (21, 1328155), (35, 796893), (105, 265631), (491, 56805), (541, 51555), (1473, 18935), (1623, 17185), (2455, 11361), (2705, 10311), (3437, 8115), (3787, 7365)]