21477391

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{977}}^1$

素因数の和:1098

約数の個数: 16

約数和(自身を含む): 24645600

約数和(自身を除く): 3168209

約数列:

[1, 13, 19, 89, 247, 977, 1157, 1691, 12701, 18563, 21983, 86953, 241319, 1130389, 1652107, 21477391]

約数ペア:

[(1, 21477391), (13, 1652107), (19, 1130389), (89, 241319), (247, 86953), (977, 21983), (1157, 18563), (1691, 12701)]