20760808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{521}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 41436360

約数和(自身を除く): 20675552

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 293, 521, 586, 1042, 1172, 2084, 2344, 4168, 4981, 8857, 9962, 17714, 19924, 35428, 39848, 70856, 152653, 305306, 610612, 1221224, 2595101, 5190202, 10380404, 20760808]

約数ペア:

[(1, 20760808), (2, 10380404), (4, 5190202), (8, 2595101), (17, 1221224), (34, 610612), (68, 305306), (136, 152653), (293, 70856), (521, 39848), (586, 35428), (1042, 19924), (1172, 17714), (2084, 9962), (2344, 8857), (4168, 4981)]