20581964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{17209}}^1$

素因数の和:17249

約数の個数: 24

約数和(自身を含む): 40477920

約数和(自身を除く): 19895956

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 598, 1196, 17209, 34418, 68836, 223717, 395807, 447434, 791614, 894868, 1583228, 5145491, 10290982, 20581964]

約数ペア:

[(1, 20581964), (2, 10290982), (4, 5145491), (13, 1583228), (23, 894868), (26, 791614), (46, 447434), (52, 395807), (92, 223717), (299, 68836), (598, 34418), (1196, 17209)]