21940808515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{757}}^1\times {\mathrm{1231}}^1$

素因数の和:2287

約数の個数: 32

約数和(自身を含む): 28038092544

約数和(自身を除く): 6097284029

約数列:

[1, 5, 17, 85, 277, 757, 1231, 1385, 3785, 4709, 6155, 12869, 20927, 23545, 64345, 104635, 209689, 340987, 931867, 1048445, 1704935, 3564713, 4659335, 5796779, 15841739, 17823565, 28983895, 79208695, 258127159, 1290635795, 4388161703, 21940808515]

約数ペア:

[(1, 21940808515), (5, 4388161703), (17, 1290635795), (85, 258127159), (277, 79208695), (757, 28983895), (1231, 17823565), (1385, 15841739), (3785, 5796779), (4709, 4659335), (6155, 3564713), (12869, 1704935), (20927, 1048445), (23545, 931867), (64345, 340987), (104635, 209689)]