81764921

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{743}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 95232000

約数和(自身を除く): 13467079

約数列:

[1, 7, 79, 199, 553, 743, 1393, 5201, 15721, 58697, 110047, 147857, 410879, 1034999, 11680703, 81764921]

約数ペア:

[(1, 81764921), (7, 11680703), (79, 1034999), (199, 410879), (553, 147857), (743, 110047), (1393, 58697), (5201, 15721)]