21852162865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1040827}}^1$

素因数の和:1040881

約数の個数: 32

約数和(自身を含む): 31474638720

約数和(自身を除く): 9622475855

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 20995, 1040827, 5204135, 13530751, 17694059, 19775713, 67653755, 88470295, 98878565, 230022767, 257084269, 336187121, 1150113835, 1285421345, 1680935605, 4370432573, 21852162865]

約数ペア:

[(1, 21852162865), (5, 4370432573), (13, 1680935605), (17, 1285421345), (19, 1150113835), (65, 336187121), (85, 257084269), (95, 230022767), (221, 98878565), (247, 88470295), (323, 67653755), (1105, 19775713), (1235, 17694059), (1615, 13530751), (4199, 5204135), (20995, 1040827)]