21345493

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{971}}^1$

素因数の和:1092

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 3148907

約数列:

[1, 13, 19, 89, 247, 971, 1157, 1691, 12623, 18449, 21983, 86419, 239837, 1123447, 1641961, 21345493]

約数ペア:

[(1, 21345493), (13, 1641961), (19, 1123447), (89, 239837), (247, 86419), (971, 21983), (1157, 18449), (1691, 12623)]