20506408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{733}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 41617800

約数和(自身を除く): 21111392

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 269, 538, 733, 1076, 1466, 2152, 2932, 3497, 5864, 6994, 9529, 13988, 19058, 27976, 38116, 76232, 197177, 394354, 788708, 1577416, 2563301, 5126602, 10253204, 20506408]

約数ペア:

[(1, 20506408), (2, 10253204), (4, 5126602), (8, 2563301), (13, 1577416), (26, 788708), (52, 394354), (104, 197177), (269, 76232), (538, 38116), (733, 27976), (1076, 19058), (1466, 13988), (2152, 9529), (2932, 6994), (3497, 5864)]