21894657

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{1297}}^1$

素因数の和:1648

約数の個数: 16

約数和(自身を含む): 31027392

約数和(自身を除く): 9132735

約数列:

[1, 3, 17, 51, 331, 993, 1297, 3891, 5627, 16881, 22049, 66147, 429307, 1287921, 7298219, 21894657]

約数ペア:

[(1, 21894657), (3, 7298219), (17, 1287921), (51, 429307), (331, 66147), (993, 22049), (1297, 16881), (3891, 5627)]