215980911

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{19463}}^1$

素因数の和:19612

約数の個数: 20

約数和(自身を含む): 325009872

約数和(自身を除く): 109028961

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 3699, 11097, 19463, 58389, 175167, 525501, 1576503, 2666431, 7999293, 23997879, 71993637, 215980911]

約数ペア:

[(1, 215980911), (3, 71993637), (9, 23997879), (27, 7999293), (81, 2666431), (137, 1576503), (411, 525501), (1233, 175167), (3699, 58389), (11097, 19463)]