21108441

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{2741}}^1$

素因数の和:2912

約数の個数: 16

約数和(自身を含む): 30008448

約数和(自身を除く): 8900007

約数列:

[1, 3, 17, 51, 151, 453, 2567, 2741, 7701, 8223, 46597, 139791, 413891, 1241673, 7036147, 21108441]

約数ペア:

[(1, 21108441), (3, 7036147), (17, 1241673), (51, 413891), (151, 139791), (453, 46597), (2567, 8223), (2741, 7701)]