21816510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17737}}^1$

素因数の和:17788

約数の個数: 32

約数和(自身を含む): 53639712

約数和(自身を除く): 31823202

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 17737, 35474, 53211, 88685, 106422, 177370, 266055, 532110, 727217, 1454434, 2181651, 3636085, 4363302, 7272170, 10908255, 21816510]

約数ペア:

[(1, 21816510), (2, 10908255), (3, 7272170), (5, 4363302), (6, 3636085), (10, 2181651), (15, 1454434), (30, 727217), (41, 532110), (82, 266055), (123, 177370), (205, 106422), (246, 88685), (410, 53211), (615, 35474), (1230, 17737)]