18608215

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{443}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 23187456

約数和(自身を除く): 4579241

約数列:

[1, 5, 31, 155, 271, 443, 1355, 2215, 8401, 13733, 42005, 68665, 120053, 600265, 3721643, 18608215]

約数ペア:

[(1, 18608215), (5, 3721643), (31, 600265), (155, 120053), (271, 68665), (443, 42005), (1355, 13733), (2215, 8401)]