21051459

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1487}}^1$

素因数の和:1528

約数の個数: 36

約数和(自身を含む): 36018528

約数和(自身を除く): 14967069

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1487, 1573, 4461, 4719, 13383, 14157, 16357, 19331, 49071, 57993, 147213, 173979, 179927, 212641, 539781, 637923, 1619343, 1913769, 2339051, 7017153, 21051459]

約数ペア:

[(1, 21051459), (3, 7017153), (9, 2339051), (11, 1913769), (13, 1619343), (33, 637923), (39, 539781), (99, 212641), (117, 179927), (121, 173979), (143, 147213), (363, 57993), (429, 49071), (1089, 19331), (1287, 16357), (1487, 14157), (1573, 13383), (4461, 4719)]