40139379

素因数分解:

$3^2\times 7^2\times {\mathrm{91019}}^1$

素因数の和:91039

約数の個数: 18

約数和(自身を含む): 67445820

約数和(自身を除く): 27306441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 91019, 273057, 637133, 819171, 1911399, 4459931, 5734197, 13379793, 40139379]

約数ペア:

[(1, 40139379), (3, 13379793), (7, 5734197), (9, 4459931), (21, 1911399), (49, 819171), (63, 637133), (147, 273057), (441, 91019)]