18218956

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4967}}^1$

素因数の和:5109

約数の個数: 24

約数和(自身を含む): 36723456

約数和(自身を除く): 18504500

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 4967, 9934, 19868, 34769, 69538, 139076, 650677, 1301354, 2602708, 4554739, 9109478, 18218956]

約数ペア:

[(1, 18218956), (2, 9109478), (4, 4554739), (7, 2602708), (14, 1301354), (28, 650677), (131, 139076), (262, 69538), (524, 34769), (917, 19868), (1834, 9934), (3668, 4967)]