21398490885

素因数分解:

$3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3249581}}^1$

素因数の和:3250028

約数の個数: 16

約数和(自身を含む): 34315585920

約数和(自身を除く): 12917095035

約数列:

[1, 3, 5, 15, 439, 1317, 2195, 6585, 3249581, 9748743, 16247905, 48743715, 1426566059, 4279698177, 7132830295, 21398490885]

約数ペア:

[(1, 21398490885), (3, 7132830295), (5, 4279698177), (15, 1426566059), (439, 48743715), (1317, 16247905), (2195, 9748743), (6585, 3249581)]