21745227

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3583}}^1$

素因数の和:3627

約数の個数: 24

約数和(自身を含む): 35209216

約数和(自身を除く): 13463989

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3583, 6069, 10749, 25081, 60911, 75243, 182733, 426377, 1035487, 1279131, 3106461, 7248409, 21745227]

約数ペア:

[(1, 21745227), (3, 7248409), (7, 3106461), (17, 1279131), (21, 1035487), (51, 426377), (119, 182733), (289, 75243), (357, 60911), (867, 25081), (2023, 10749), (3583, 6069)]