21242898

素因数分解:

$2^1\times 3^4\times {\mathrm{131129}}^1$

素因数の和:131143

約数の個数: 20

約数和(自身を含む): 47600190

約数和(自身を除く): 26357292

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131129, 262258, 393387, 786774, 1180161, 2360322, 3540483, 7080966, 10621449, 21242898]

約数ペア:

[(1, 21242898), (2, 10621449), (3, 7080966), (6, 3540483), (9, 2360322), (18, 1180161), (27, 786774), (54, 393387), (81, 262258), (162, 131129)]