20970564

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 51020928

約数和(自身を除く): 30050364

約数列:

[1, 2, 3, 4, 6, 12, 37, 73, 74, 111, 146, 148, 219, 222, 292, 438, 444, 647, 876, 1294, 1941, 2588, 2701, 3882, 5402, 7764, 8103, 10804, 16206, 23939, 32412, 47231, 47878, 71817, 94462, 95756, 141693, 143634, 188924, 283386, 287268, 566772, 1747547, 3495094, 5242641, 6990188, 10485282, 20970564]

約数ペア:

[(1, 20970564), (2, 10485282), (3, 6990188), (4, 5242641), (6, 3495094), (12, 1747547), (37, 566772), (73, 287268), (74, 283386), (111, 188924), (146, 143634), (148, 141693), (219, 95756), (222, 94462), (292, 71817), (438, 47878), (444, 47231), (647, 32412), (876, 23939), (1294, 16206), (1941, 10804), (2588, 8103), (2701, 7764), (3882, 5402)]