1320340021

素因数分解:

$7^1\times {\mathrm{11}}^4\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1055

約数の個数: 40

約数和(自身を含む): 1789329920

約数和(自身を除く): 468989899

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 847, 991, 1001, 1331, 1573, 6937, 9317, 10901, 11011, 12883, 14641, 17303, 76307, 90181, 102487, 119911, 121121, 141713, 190333, 839377, 991991, 1319021, 1332331, 1558843, 9233147, 10911901, 14509231, 17147273, 101564617, 120030911, 188620003, 1320340021]

約数ペア:

[(1, 1320340021), (7, 188620003), (11, 120030911), (13, 101564617), (77, 17147273), (91, 14509231), (121, 10911901), (143, 9233147), (847, 1558843), (991, 1332331), (1001, 1319021), (1331, 991991), (1573, 839377), (6937, 190333), (9317, 141713), (10901, 121121), (11011, 119911), (12883, 102487), (14641, 90181), (17303, 76307)]