20926389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11329611

約数列:

[1, 3, 11, 23, 33, 69, 79, 237, 253, 349, 759, 869, 1047, 1817, 2607, 3839, 5451, 8027, 11517, 19987, 24081, 27571, 59961, 82713, 88297, 264891, 303281, 634133, 909843, 1902399, 6975463, 20926389]

約数ペア:

[(1, 20926389), (3, 6975463), (11, 1902399), (23, 909843), (33, 634133), (69, 303281), (79, 264891), (237, 88297), (253, 82713), (349, 59961), (759, 27571), (869, 24081), (1047, 19987), (1817, 11517), (2607, 8027), (3839, 5451)]