16963821

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{919}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 28129920

約数和(自身を除く): 11166099

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 919, 2051, 2637, 2757, 6153, 6433, 8271, 18459, 19299, 57897, 269267, 807801, 1884869, 2423403, 5654607, 16963821]

約数ペア:

[(1, 16963821), (3, 5654607), (7, 2423403), (9, 1884869), (21, 807801), (63, 269267), (293, 57897), (879, 19299), (919, 18459), (2051, 8271), (2637, 6433), (2757, 6153)]