128978826

素因数分解:

$2^1\times 3^1\times {\mathrm{491}}^1\times {\mathrm{43781}}^1$

素因数の和:44277

約数の個数: 16

約数和(自身を含む): 258488928

約数和(自身を除く): 129510102

約数列:

[1, 2, 3, 6, 491, 982, 1473, 2946, 43781, 87562, 131343, 262686, 21496471, 42992942, 64489413, 128978826]

約数ペア:

[(1, 128978826), (2, 64489413), (3, 42992942), (6, 21496471), (491, 262686), (982, 131343), (1473, 87562), (2946, 43781)]