21105219

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{773}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 29721600

約数和(自身を除く): 8616381

約数列:

[1, 3, 19, 57, 479, 773, 1437, 2319, 9101, 14687, 27303, 44061, 370267, 1110801, 7035073, 21105219]

約数ペア:

[(1, 21105219), (3, 7035073), (19, 1110801), (57, 370267), (479, 44061), (773, 27303), (1437, 14687), (2319, 9101)]