18724671

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15643}}^1$

素因数の和:15675

約数の個数: 24

約数和(自身を含む): 32539520

約数和(自身を除く): 13814849

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15643, 46929, 109501, 140787, 297217, 328503, 891651, 985509, 2080519, 2674953, 6241557, 18724671]

約数ペア:

[(1, 18724671), (3, 6241557), (7, 2674953), (9, 2080519), (19, 985509), (21, 891651), (57, 328503), (63, 297217), (133, 140787), (171, 109501), (399, 46929), (1197, 15643)]