87791291

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 106006320

約数和(自身を除く): 18215029

約数列:

[1, 7, 41, 49, 89, 287, 491, 623, 2009, 3437, 3649, 4361, 20131, 24059, 25543, 43699, 140917, 178801, 305893, 986419, 1791659, 2141251, 12541613, 87791291]

約数ペア:

[(1, 87791291), (7, 12541613), (41, 2141251), (49, 1791659), (89, 986419), (287, 305893), (491, 178801), (623, 140917), (2009, 43699), (3437, 25543), (3649, 24059), (4361, 20131)]