21489190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6653}}^1$

素因数の和:6696

約数の個数: 32

約数和(自身を含む): 43117920

約数和(自身を除く): 21628730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 6653, 13306, 33265, 66530, 113101, 126407, 226202, 252814, 565505, 632035, 1131010, 1264070, 2148919, 4297838, 10744595, 21489190]

約数ペア:

[(1, 21489190), (2, 10744595), (5, 4297838), (10, 2148919), (17, 1264070), (19, 1131010), (34, 632035), (38, 565505), (85, 252814), (95, 226202), (170, 126407), (190, 113101), (323, 66530), (646, 33265), (1615, 13306), (3230, 6653)]