19441317

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 30818304

約数和(自身を除く): 11376987

約数列:

[1, 3, 7, 21, 37, 111, 131, 191, 259, 393, 573, 777, 917, 1337, 2751, 4011, 4847, 7067, 14541, 21201, 25021, 33929, 49469, 75063, 101787, 148407, 175147, 525441, 925777, 2777331, 6480439, 19441317]

約数ペア:

[(1, 19441317), (3, 6480439), (7, 2777331), (21, 925777), (37, 525441), (111, 175147), (131, 148407), (191, 101787), (259, 75063), (393, 49469), (573, 33929), (777, 25021), (917, 21201), (1337, 14541), (2751, 7067), (4011, 4847)]