19704951

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1553

約数の個数: 40

約数和(自身を含む): 35126784

約数和(自身を除く): 15421833

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1511, 1863, 4347, 4533, 10577, 13041, 13599, 31731, 34753, 40797, 95193, 104259, 122391, 243271, 285579, 312777, 729813, 856737, 938331, 2189439, 2814993, 6568317, 19704951]

約数ペア:

[(1, 19704951), (3, 6568317), (7, 2814993), (9, 2189439), (21, 938331), (23, 856737), (27, 729813), (63, 312777), (69, 285579), (81, 243271), (161, 122391), (189, 104259), (207, 95193), (483, 40797), (567, 34753), (621, 31731), (1449, 13599), (1511, 13041), (1863, 10577), (4347, 4533)]