338640001

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 410009600

約数和(自身を除く): 71369599

約数列:

[1, 7, 31, 103, 109, 139, 217, 721, 763, 973, 3193, 3379, 4309, 11227, 14317, 15151, 22351, 23653, 30163, 78589, 100219, 106057, 348037, 443827, 469681, 1560553, 2436259, 3106789, 3287767, 10923871, 48377143, 338640001]

約数ペア:

[(1, 338640001), (7, 48377143), (31, 10923871), (103, 3287767), (109, 3106789), (139, 2436259), (217, 1560553), (721, 469681), (763, 443827), (973, 348037), (3193, 106057), (3379, 100219), (4309, 78589), (11227, 30163), (14317, 23653), (15151, 22351)]