21415983

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1559}}^1$

素因数の和:1822

約数の個数: 16

約数和(自身を含む): 30201600

約数和(自身を除く): 8785617

約数列:

[1, 3, 19, 57, 241, 723, 1559, 4579, 4677, 13737, 29621, 88863, 375719, 1127157, 7138661, 21415983]

約数ペア:

[(1, 21415983), (3, 7138661), (19, 1127157), (57, 375719), (241, 88863), (723, 29621), (1559, 13737), (4579, 4677)]