16820685

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{797}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 33860736

約数和(自身を除く): 17040051

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 67, 105, 201, 315, 335, 469, 603, 797, 1005, 1407, 2345, 2391, 3015, 3985, 4221, 5579, 7035, 7173, 11955, 16737, 21105, 27895, 35865, 50211, 53399, 83685, 160197, 251055, 266995, 373793, 480591, 800985, 1121379, 1868965, 2402955, 3364137, 5606895, 16820685]

約数ペア:

[(1, 16820685), (3, 5606895), (5, 3364137), (7, 2402955), (9, 1868965), (15, 1121379), (21, 800985), (35, 480591), (45, 373793), (63, 266995), (67, 251055), (105, 160197), (201, 83685), (315, 53399), (335, 50211), (469, 35865), (603, 27895), (797, 21105), (1005, 16737), (1407, 11955), (2345, 7173), (2391, 7035), (3015, 5579), (3985, 4221)]