21240638

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1\times {\mathrm{829}}^1$

素因数の和:1411

約数の個数: 16

約数和(自身を含む): 33346080

約数和(自身を除く): 12105442

約数列:

[1, 2, 23, 46, 557, 829, 1114, 1658, 12811, 19067, 25622, 38134, 461753, 923506, 10620319, 21240638]

約数ペア:

[(1, 21240638), (2, 10620319), (23, 923506), (46, 461753), (557, 38134), (829, 25622), (1114, 19067), (1658, 12811)]