21240306

素因数分解:

$2^1\times 3^4\times {\mathrm{131113}}^1$

素因数の和:131127

約数の個数: 20

約数和(自身を含む): 47594382

約数和(自身を除く): 26354076

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131113, 262226, 393339, 786678, 1180017, 2360034, 3540051, 7080102, 10620153, 21240306]

約数ペア:

[(1, 21240306), (2, 10620153), (3, 7080102), (6, 3540051), (9, 2360034), (18, 1180017), (27, 786678), (54, 393339), (81, 262226), (162, 131113)]