21236774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2089}}^1$

素因数の和:2144

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 16684186

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 2089, 4178, 5083, 10166, 27157, 35513, 48047, 54314, 71026, 96094, 461669, 624611, 816799, 923338, 1249222, 1633598, 10618387, 21236774]

約数ペア:

[(1, 21236774), (2, 10618387), (13, 1633598), (17, 1249222), (23, 923338), (26, 816799), (34, 624611), (46, 461669), (221, 96094), (299, 71026), (391, 54314), (442, 48047), (598, 35513), (782, 27157), (2089, 10166), (4178, 5083)]