18805005

素因数分解:

$3^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{821}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 32699160

約数和(自身を除く): 13894155

約数列:

[1, 3, 5, 9, 15, 45, 509, 821, 1527, 2463, 2545, 4105, 4581, 7389, 7635, 12315, 22905, 36945, 417889, 1253667, 2089445, 3761001, 6268335, 18805005]

約数ペア:

[(1, 18805005), (3, 6268335), (5, 3761001), (9, 2089445), (15, 1253667), (45, 417889), (509, 36945), (821, 22905), (1527, 12315), (2463, 7635), (2545, 7389), (4105, 4581)]