20847885

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 13746675

約数列:

[1, 3, 5, 15, 41, 109, 123, 205, 311, 327, 545, 615, 933, 1555, 1635, 4469, 4665, 12751, 13407, 22345, 33899, 38253, 63755, 67035, 101697, 169495, 191265, 508485, 1389859, 4169577, 6949295, 20847885]

約数ペア:

[(1, 20847885), (3, 6949295), (5, 4169577), (15, 1389859), (41, 508485), (109, 191265), (123, 169495), (205, 101697), (311, 67035), (327, 63755), (545, 38253), (615, 33899), (933, 22345), (1555, 13407), (1635, 12751), (4469, 4665)]