18630721

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{439}}^1$

素因数の和:544

約数の個数: 12

約数和(自身を含む): 19810560

約数和(自身を除く): 1179839

約数列:

[1, 31, 37, 439, 1147, 1369, 13609, 16243, 42439, 503533, 600991, 18630721]

約数ペア:

[(1, 18630721), (31, 600991), (37, 503533), (439, 42439), (1147, 16243), (1369, 13609)]