21390483

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{2441}}^1$

素因数の和:2594

約数の個数: 16

約数和(自身を含む): 30007296

約数和(自身を除く): 8616813

約数列:

[1, 3, 23, 69, 127, 381, 2441, 2921, 7323, 8763, 56143, 168429, 310007, 930021, 7130161, 21390483]

約数ペア:

[(1, 21390483), (3, 7130161), (23, 930021), (69, 310007), (127, 168429), (381, 56143), (2441, 8763), (2921, 7323)]