21042801

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59951}}^1$

素因数の和:59973

約数の個数: 16

約数和(自身を含む): 33573120

約数和(自身を除く): 12530319

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 59951, 179853, 539559, 779363, 1618677, 2338089, 7014267, 21042801]

約数ペア:

[(1, 21042801), (3, 7014267), (9, 2338089), (13, 1618677), (27, 779363), (39, 539559), (117, 179853), (351, 59951)]