20592988

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:814

約数の個数: 36

約数和(自身を含む): 40028688

約数和(自身を除く): 19435700

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 169, 338, 533, 676, 743, 1066, 1486, 2132, 2972, 6929, 9659, 13858, 19318, 27716, 30463, 38636, 60926, 121852, 125567, 251134, 396019, 502268, 792038, 1584076, 5148247, 10296494, 20592988]

約数ペア:

[(1, 20592988), (2, 10296494), (4, 5148247), (13, 1584076), (26, 792038), (41, 502268), (52, 396019), (82, 251134), (164, 125567), (169, 121852), (338, 60926), (533, 38636), (676, 30463), (743, 27716), (1066, 19318), (1486, 13858), (2132, 9659), (2972, 6929)]