20677545

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21881}}^1$

素因数の和:21902

約数の個数: 32

約数和(自身を含む): 42013440

約数和(自身を除く): 21335895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21881, 65643, 109405, 153167, 196929, 328215, 459501, 590787, 765835, 984645, 1378503, 2297505, 2953935, 4135509, 6892515, 20677545]

約数ペア:

[(1, 20677545), (3, 6892515), (5, 4135509), (7, 2953935), (9, 2297505), (15, 1378503), (21, 984645), (27, 765835), (35, 590787), (45, 459501), (63, 328215), (105, 196929), (135, 153167), (189, 109405), (315, 65643), (945, 21881)]