21658668

素因数分解:

$2^2\times 3^1\times {\mathrm{353}}^1\times {\mathrm{5113}}^1$

素因数の和:5473

約数の個数: 24

約数和(自身を含む): 50689968

約数和(自身を除く): 29031300

約数列:

[1, 2, 3, 4, 6, 12, 353, 706, 1059, 1412, 2118, 4236, 5113, 10226, 15339, 20452, 30678, 61356, 1804889, 3609778, 5414667, 7219556, 10829334, 21658668]

約数ペア:

[(1, 21658668), (2, 10829334), (3, 7219556), (4, 5414667), (6, 3609778), (12, 1804889), (353, 61356), (706, 30678), (1059, 20452), (1412, 15339), (2118, 10226), (4236, 5113)]