21180351

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{7039}}^1$

素因数の和:7118

約数の個数: 16

約数和(自身を含む): 30412800

約数和(自身を除く): 9232449

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 7039, 21117, 119663, 358989, 415301, 1245903, 7060117, 21180351]

約数ペア:

[(1, 21180351), (3, 7060117), (17, 1245903), (51, 415301), (59, 358989), (177, 119663), (1003, 21117), (3009, 7039)]