28289988

素因数分解:

$2^2\times 3^2\times {\mathrm{197}}^1\times {\mathrm{3989}}^1$

素因数の和:4196

約数の個数: 36

約数和(自身を含む): 71891820

約数和(自身を除く): 43601832

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 197, 394, 591, 788, 1182, 1773, 2364, 3546, 3989, 7092, 7978, 11967, 15956, 23934, 35901, 47868, 71802, 143604, 785833, 1571666, 2357499, 3143332, 4714998, 7072497, 9429996, 14144994, 28289988]

約数ペア:

[(1, 28289988), (2, 14144994), (3, 9429996), (4, 7072497), (6, 4714998), (9, 3143332), (12, 2357499), (18, 1571666), (36, 785833), (197, 143604), (394, 71802), (591, 47868), (788, 35901), (1182, 23934), (1773, 15956), (2364, 11967), (3546, 7978), (3989, 7092)]