20640444

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{577}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 52824576

約数和(自身を除く): 32184132

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 271, 542, 577, 813, 1084, 1154, 1626, 1731, 2308, 2981, 3252, 3462, 5962, 6347, 6924, 8943, 11924, 12694, 17886, 19041, 25388, 35772, 38082, 76164, 156367, 312734, 469101, 625468, 938202, 1720037, 1876404, 3440074, 5160111, 6880148, 10320222, 20640444]

約数ペア:

[(1, 20640444), (2, 10320222), (3, 6880148), (4, 5160111), (6, 3440074), (11, 1876404), (12, 1720037), (22, 938202), (33, 625468), (44, 469101), (66, 312734), (132, 156367), (271, 76164), (542, 38082), (577, 35772), (813, 25388), (1084, 19041), (1154, 17886), (1626, 12694), (1731, 11924), (2308, 8943), (2981, 6924), (3252, 6347), (3462, 5962)]