1620801

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1979}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 2882880

約数和(自身を除く): 1262079

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 1979, 5937, 13853, 17811, 25727, 41559, 77181, 124677, 180089, 231543, 540267, 1620801]

約数ペア:

[(1, 1620801), (3, 540267), (7, 231543), (9, 180089), (13, 124677), (21, 77181), (39, 41559), (63, 25727), (91, 17811), (117, 13853), (273, 5937), (819, 1979)]