21996321

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{823}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 30059520

約数和(自身を除く): 8063199

約数列:

[1, 3, 59, 151, 177, 453, 823, 2469, 8909, 26727, 48557, 124273, 145671, 372819, 7332107, 21996321]

約数ペア:

[(1, 21996321), (3, 7332107), (59, 372819), (151, 145671), (177, 124273), (453, 48557), (823, 26727), (2469, 8909)]