21858243

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{829}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 12563517

約数列:

[1, 3, 11, 17, 33, 47, 51, 141, 187, 517, 561, 799, 829, 1551, 2397, 2487, 8789, 9119, 14093, 26367, 27357, 38963, 42279, 116889, 155023, 428593, 465069, 662371, 1285779, 1987113, 7286081, 21858243]

約数ペア:

[(1, 21858243), (3, 7286081), (11, 1987113), (17, 1285779), (33, 662371), (47, 465069), (51, 428593), (141, 155023), (187, 116889), (517, 42279), (561, 38963), (799, 27357), (829, 26367), (1551, 14093), (2397, 9119), (2487, 8789)]