20403721881

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{121631}}^1$

素因数の和:121771

約数の個数: 40

約数和(自身を含む): 32378438400

約数和(自身を除く): 11974716519

約数列:

[1, 3, 9, 19, 27, 57, 81, 109, 171, 327, 513, 981, 1539, 2071, 2943, 6213, 8829, 18639, 55917, 121631, 167751, 364893, 1094679, 2310989, 3284037, 6932967, 9852111, 13257779, 20798901, 39773337, 62396703, 119320011, 187190109, 251897801, 357960033, 755693403, 1073880099, 2267080209, 6801240627, 20403721881]

約数ペア:

[(1, 20403721881), (3, 6801240627), (9, 2267080209), (19, 1073880099), (27, 755693403), (57, 357960033), (81, 251897801), (109, 187190109), (171, 119320011), (327, 62396703), (513, 39773337), (981, 20798901), (1539, 13257779), (2071, 9852111), (2943, 6932967), (6213, 3284037), (8829, 2310989), (18639, 1094679), (55917, 364893), (121631, 167751)]