21885903

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2711}}^1$

素因数の和:2756

約数の個数: 32

約数和(自身を含む): 36449280

約数和(自身を除く): 14563377

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2691, 2711, 8073, 8133, 24399, 35243, 62353, 73197, 105729, 187059, 317187, 561177, 810589, 951561, 1683531, 2431767, 7295301, 21885903]

約数ペア:

[(1, 21885903), (3, 7295301), (9, 2431767), (13, 1683531), (23, 951561), (27, 810589), (39, 561177), (69, 317187), (117, 187059), (207, 105729), (299, 73197), (351, 62353), (621, 35243), (897, 24399), (2691, 8133), (2711, 8073)]