21299274

素因数分解:

$2^1\times 3^4\times {\mathrm{131477}}^1$

素因数の和:131491

約数の個数: 20

約数和(自身を含む): 47726514

約数和(自身を除く): 26427240

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131477, 262954, 394431, 788862, 1183293, 2366586, 3549879, 7099758, 10649637, 21299274]

約数ペア:

[(1, 21299274), (2, 10649637), (3, 7099758), (6, 3549879), (9, 2366586), (18, 1183293), (27, 788862), (54, 394431), (81, 262954), (162, 131477)]