21039039

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6301}}^1$

素因数の和:6367

約数の個数: 24

約数和(自身を含む): 35392032

約数和(自身を除く): 14352993

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6301, 18903, 44107, 56709, 132321, 333953, 396963, 1001859, 2337671, 3005577, 7013013, 21039039]

約数ペア:

[(1, 21039039), (3, 7013013), (7, 3005577), (9, 2337671), (21, 1001859), (53, 396963), (63, 333953), (159, 132321), (371, 56709), (477, 44107), (1113, 18903), (3339, 6301)]