21440748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{255247}}^1$

素因数の和:255261

約数の個数: 24

約数和(自身を含む): 57175552

約数和(自身を除く): 35734804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 255247, 510494, 765741, 1020988, 1531482, 1786729, 3062964, 3573458, 5360187, 7146916, 10720374, 21440748]

約数ペア:

[(1, 21440748), (2, 10720374), (3, 7146916), (4, 5360187), (6, 3573458), (7, 3062964), (12, 1786729), (14, 1531482), (21, 1020988), (28, 765741), (42, 510494), (84, 255247)]