20438685

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6779}}^1$

素因数の和:6857

約数の個数: 24

約数和(自身を含む): 35961120

約数和(自身を除く): 15522435

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 6779, 20337, 33895, 61011, 101685, 305055, 454193, 1362579, 2270965, 4087737, 6812895, 20438685]

約数ペア:

[(1, 20438685), (3, 6812895), (5, 4087737), (9, 2270965), (15, 1362579), (45, 454193), (67, 305055), (201, 101685), (335, 61011), (603, 33895), (1005, 20337), (3015, 6779)]