21971367

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5413}}^1$

素因数の和:5471

約数の個数: 24

約数和(自身を含む): 35472528

約数和(自身を除く): 13501161

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 5413, 16239, 48717, 59543, 178629, 221933, 535887, 665799, 1997397, 2441263, 7323789, 21971367]

約数ペア:

[(1, 21971367), (3, 7323789), (9, 2441263), (11, 1997397), (33, 665799), (41, 535887), (99, 221933), (123, 178629), (369, 59543), (451, 48717), (1353, 16239), (4059, 5413)]