20673855

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6857}}^1$

素因数の和:6935

約数の個数: 24

約数和(自身を含む): 36374832

約数和(自身を除く): 15700977

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 6857, 20571, 34285, 61713, 102855, 308565, 459419, 1378257, 2297095, 4134771, 6891285, 20673855]

約数ペア:

[(1, 20673855), (3, 6891285), (5, 4134771), (9, 2297095), (15, 1378257), (45, 459419), (67, 308565), (201, 102855), (335, 61713), (603, 34285), (1005, 20571), (3015, 6857)]