20674017

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25243}}^1$

素因数の和:25269

約数の個数: 24

約数和(自身を含む): 36755264

約数和(自身を除く): 16081247

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25243, 75729, 176701, 227187, 328159, 530103, 984477, 1590309, 2297113, 2953431, 6891339, 20674017]

約数ペア:

[(1, 20674017), (3, 6891339), (7, 2953431), (9, 2297113), (13, 1590309), (21, 984477), (39, 530103), (63, 328159), (91, 227187), (117, 176701), (273, 75729), (819, 25243)]