20686215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{125371}}^1$

素因数の和:125390

約数の個数: 16

約数和(自身を含む): 36107136

約数和(自身を除く): 15420921

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 125371, 376113, 626855, 1379081, 1880565, 4137243, 6895405, 20686215]

約数ペア:

[(1, 20686215), (3, 6895405), (5, 4137243), (11, 1880565), (15, 1379081), (33, 626855), (55, 376113), (165, 125371)]