20438444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{743}}^1$

素因数の和:806

約数の個数: 36

約数和(自身を含む): 40320336

約数和(自身を除く): 19881892

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 529, 598, 743, 1058, 1196, 1486, 2116, 2972, 6877, 9659, 13754, 17089, 19318, 27508, 34178, 38636, 68356, 222157, 393047, 444314, 786094, 888628, 1572188, 5109611, 10219222, 20438444]

約数ペア:

[(1, 20438444), (2, 10219222), (4, 5109611), (13, 1572188), (23, 888628), (26, 786094), (46, 444314), (52, 393047), (92, 222157), (299, 68356), (529, 38636), (598, 34178), (743, 27508), (1058, 19318), (1196, 17089), (1486, 13754), (2116, 9659), (2972, 6877)]