20587905

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11731}}^1$

素因数の和:11758

約数の個数: 32

約数和(自身を含む): 39419520

約数和(自身を除く): 18831615

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11731, 35193, 58655, 105579, 152503, 175965, 316737, 457509, 527895, 762515, 1372527, 1583685, 2287545, 4117581, 6862635, 20587905]

約数ペア:

[(1, 20587905), (3, 6862635), (5, 4117581), (9, 2287545), (13, 1583685), (15, 1372527), (27, 762515), (39, 527895), (45, 457509), (65, 316737), (117, 175965), (135, 152503), (195, 105579), (351, 58655), (585, 35193), (1755, 11731)]