13209890

素因数分解:

$2^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1609}}^1$

素因数の和:2437

約数の個数: 16

約数和(自身を含む): 23821560

約数和(自身を除く): 10611670

約数列:

[1, 2, 5, 10, 821, 1609, 1642, 3218, 4105, 8045, 8210, 16090, 1320989, 2641978, 6604945, 13209890]

約数ペア:

[(1, 13209890), (2, 6604945), (5, 2641978), (10, 1320989), (821, 16090), (1609, 8210), (1642, 8045), (3218, 4105)]