20879019

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1811}}^1$

素因数の和:1888

約数の個数: 32

約数和(自身を含む): 35950080

約数和(自身を除く): 15071061

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 1811, 3843, 5433, 11529, 12677, 16299, 38031, 48897, 110471, 114093, 331413, 342279, 773297, 994239, 2319891, 2982717, 6959673, 20879019]

約数ペア:

[(1, 20879019), (3, 6959673), (7, 2982717), (9, 2319891), (21, 994239), (27, 773297), (61, 342279), (63, 331413), (183, 114093), (189, 110471), (427, 48897), (549, 38031), (1281, 16299), (1647, 12677), (1811, 11529), (3843, 5433)]