20386964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12647}}^1$

素因数の和:12695

約数の個数: 24

約数和(自身を含む): 39664128

約数和(自身を除く): 19277164

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12647, 25294, 50588, 164411, 328822, 392057, 657644, 784114, 1568228, 5096741, 10193482, 20386964]

約数ペア:

[(1, 20386964), (2, 10193482), (4, 5096741), (13, 1568228), (26, 784114), (31, 657644), (52, 392057), (62, 328822), (124, 164411), (403, 50588), (806, 25294), (1612, 12647)]