19796859

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 11307141

約数列:

[1, 3, 9, 23, 27, 69, 71, 207, 213, 449, 621, 639, 1347, 1633, 1917, 4041, 4899, 10327, 12123, 14697, 30981, 31879, 44091, 92943, 95637, 278829, 286911, 733217, 860733, 2199651, 6598953, 19796859]

約数ペア:

[(1, 19796859), (3, 6598953), (9, 2199651), (23, 860733), (27, 733217), (69, 286911), (71, 278829), (207, 95637), (213, 92943), (449, 44091), (621, 31879), (639, 30981), (1347, 14697), (1633, 12123), (1917, 10327), (4041, 4899)]