20175669

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 31829760

約数和(自身を除く): 11654091

約数列:

[1, 3, 9, 23, 27, 53, 69, 159, 207, 477, 613, 621, 1219, 1431, 1839, 3657, 5517, 10971, 14099, 16551, 32489, 32913, 42297, 97467, 126891, 292401, 380673, 747247, 877203, 2241741, 6725223, 20175669]

約数ペア:

[(1, 20175669), (3, 6725223), (9, 2241741), (23, 877203), (27, 747247), (53, 380673), (69, 292401), (159, 126891), (207, 97467), (477, 42297), (613, 32913), (621, 32489), (1219, 16551), (1431, 14099), (1839, 10971), (3657, 5517)]