18172688

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{2777}}^1$

素因数の和:3194

約数の個数: 20

約数和(自身を含む): 35308380

約数和(自身を除く): 17135692

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 2777, 3272, 5554, 6544, 11108, 22216, 44432, 1135793, 2271586, 4543172, 9086344, 18172688]

約数ペア:

[(1, 18172688), (2, 9086344), (4, 4543172), (8, 2271586), (16, 1135793), (409, 44432), (818, 22216), (1636, 11108), (2777, 6544), (3272, 5554)]