21490635

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1187}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 36951552

約数和(自身を除く): 15460917

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1187, 1207, 3561, 3621, 5935, 6035, 17805, 18105, 20179, 60537, 84277, 100895, 252831, 302685, 421385, 1264155, 1432709, 4298127, 7163545, 21490635]

約数ペア:

[(1, 21490635), (3, 7163545), (5, 4298127), (15, 1432709), (17, 1264155), (51, 421385), (71, 302685), (85, 252831), (213, 100895), (255, 84277), (355, 60537), (1065, 20179), (1187, 18105), (1207, 17805), (3561, 6035), (3621, 5935)]