19811763

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 31188480

約数和(自身を除く): 11376717

約数列:

[1, 3, 9, 23, 27, 61, 69, 183, 207, 523, 549, 621, 1403, 1569, 1647, 4209, 4707, 12029, 12627, 14121, 31903, 36087, 37881, 95709, 108261, 287127, 324783, 733769, 861381, 2201307, 6603921, 19811763]

約数ペア:

[(1, 19811763), (3, 6603921), (9, 2201307), (23, 861381), (27, 733769), (61, 324783), (69, 287127), (183, 108261), (207, 95709), (523, 37881), (549, 36087), (621, 31903), (1403, 14121), (1569, 12627), (1647, 12029), (4209, 4707)]