210990171

素因数分解:

$3^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{19739}}^1$

素因数の和:20258

約数の個数: 16

約数和(自身を含む): 322156800

約数和(自身を除く): 111166629

約数列:

[1, 3, 7, 21, 509, 1527, 3563, 10689, 19739, 59217, 138173, 414519, 10047151, 30141453, 70330057, 210990171]

約数ペア:

[(1, 210990171), (3, 70330057), (7, 30141453), (21, 10047151), (509, 414519), (1527, 138173), (3563, 59217), (10689, 19739)]