21345417

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41609}}^1$

素因数の和:41637

約数の個数: 16

約数和(自身を含む): 33288000

約数和(自身を除く): 11942583

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41609, 124827, 374481, 790571, 1123443, 2371713, 7115139, 21345417]

約数ペア:

[(1, 21345417), (3, 7115139), (9, 2371713), (19, 1123443), (27, 790571), (57, 374481), (171, 124827), (513, 41609)]