20808565921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{509}}^1\times {\mathrm{21991}}^1$

素因数の和:22537

約数の個数: 24

約数和(自身を含む): 24630160320

約数和(自身を除く): 3821594399

約数列:

[1, 11, 13, 143, 169, 509, 1859, 5599, 6617, 21991, 72787, 86021, 241901, 285883, 946231, 3144713, 3716479, 11193419, 40881269, 123127609, 145514447, 1600658917, 1891687811, 20808565921]

約数ペア:

[(1, 20808565921), (11, 1891687811), (13, 1600658917), (143, 145514447), (169, 123127609), (509, 40881269), (1859, 11193419), (5599, 3716479), (6617, 3144713), (21991, 946231), (72787, 285883), (86021, 241901)]