20777505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{457}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 38164224

約数和(自身を除く): 17386719

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 433, 457, 1299, 1371, 2165, 2285, 3031, 3199, 6495, 6855, 9093, 9597, 15155, 15995, 45465, 47985, 197881, 593643, 989405, 1385167, 2968215, 4155501, 6925835, 20777505]

約数ペア:

[(1, 20777505), (3, 6925835), (5, 4155501), (7, 2968215), (15, 1385167), (21, 989405), (35, 593643), (105, 197881), (433, 47985), (457, 45465), (1299, 15995), (1371, 15155), (2165, 9597), (2285, 9093), (3031, 6855), (3199, 6495)]