208011891

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 299155456

約数和(自身を除く): 91143565

約数列:

[1, 3, 31, 37, 61, 93, 111, 183, 991, 1147, 1891, 2257, 2973, 3441, 5673, 6771, 30721, 36667, 60451, 69967, 92163, 110001, 181353, 209901, 1136677, 1873981, 2236687, 3410031, 5621943, 6710061, 69337297, 208011891]

約数ペア:

[(1, 208011891), (3, 69337297), (31, 6710061), (37, 5621943), (61, 3410031), (93, 2236687), (111, 1873981), (183, 1136677), (991, 209901), (1147, 181353), (1891, 110001), (2257, 92163), (2973, 69967), (3441, 60451), (5673, 36667), (6771, 30721)]