18880164

素因数分解:

$2^2\times 3^2\times {\mathrm{499}}^1\times {\mathrm{1051}}^1$

素因数の和:1560

約数の個数: 36

約数和(自身を含む): 47866000

約数和(自身を除く): 28985836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 499, 998, 1051, 1497, 1996, 2102, 2994, 3153, 4204, 4491, 5988, 6306, 8982, 9459, 12612, 17964, 18918, 37836, 524449, 1048898, 1573347, 2097796, 3146694, 4720041, 6293388, 9440082, 18880164]

約数ペア:

[(1, 18880164), (2, 9440082), (3, 6293388), (4, 4720041), (6, 3146694), (9, 2097796), (12, 1573347), (18, 1048898), (36, 524449), (499, 37836), (998, 18918), (1051, 17964), (1497, 12612), (1996, 9459), (2102, 8982), (2994, 6306), (3153, 5988), (4204, 4491)]