16218855

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{821}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 28211040

約数和(自身を除く): 11992185

約数列:

[1, 3, 5, 9, 15, 45, 439, 821, 1317, 2195, 2463, 3951, 4105, 6585, 7389, 12315, 19755, 36945, 360419, 1081257, 1802095, 3243771, 5406285, 16218855]

約数ペア:

[(1, 16218855), (3, 5406285), (5, 3243771), (9, 1802095), (15, 1081257), (45, 360419), (439, 36945), (821, 19755), (1317, 12315), (2195, 7389), (2463, 6585), (3951, 4105)]