1639989

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 2594592

約数和(自身を除く): 954603

約数列:

[1, 3, 9, 13, 39, 107, 117, 131, 321, 393, 963, 1179, 1391, 1703, 4173, 5109, 12519, 14017, 15327, 42051, 126153, 182221, 546663, 1639989]

約数ペア:

[(1, 1639989), (3, 546663), (9, 182221), (13, 126153), (39, 42051), (107, 15327), (117, 14017), (131, 12519), (321, 5109), (393, 4173), (963, 1703), (1179, 1391)]