20740023

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11515977

約数列:

[1, 3, 9, 27, 31, 71, 93, 213, 279, 349, 639, 837, 1047, 1917, 2201, 3141, 6603, 9423, 10819, 19809, 24779, 32457, 59427, 74337, 97371, 223011, 292113, 669033, 768149, 2304447, 6913341, 20740023]

約数ペア:

[(1, 20740023), (3, 6913341), (9, 2304447), (27, 768149), (31, 669033), (71, 292113), (93, 223011), (213, 97371), (279, 74337), (349, 59427), (639, 32457), (837, 24779), (1047, 19809), (1917, 10819), (2201, 9423), (3141, 6603)]