18045503

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{607}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 21479424

約数和(自身を除く): 3433921

約数列:

[1, 7, 31, 137, 217, 607, 959, 4247, 4249, 18817, 29729, 83159, 131719, 582113, 2577929, 18045503]

約数ペア:

[(1, 18045503), (7, 2577929), (31, 582113), (137, 131719), (217, 83159), (607, 29729), (959, 18817), (4247, 4249)]