20470989

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3853}}^1$

素因数の和:3897

約数の個数: 32

約数和(自身を含む): 35518464

約数和(自身を除く): 15047475

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 3853, 5313, 11559, 26971, 42383, 80913, 88619, 127149, 265857, 296681, 620333, 890043, 974809, 1860999, 2924427, 6823663, 20470989]

約数ペア:

[(1, 20470989), (3, 6823663), (7, 2924427), (11, 1860999), (21, 974809), (23, 890043), (33, 620333), (69, 296681), (77, 265857), (161, 127149), (231, 88619), (253, 80913), (483, 42383), (759, 26971), (1771, 11559), (3853, 5313)]