1991979

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 3398400

約数和(自身を除く): 1406421

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 171, 209, 297, 353, 513, 627, 1059, 1881, 3177, 3883, 5643, 6707, 9531, 11649, 20121, 34947, 60363, 73777, 104841, 181089, 221331, 663993, 1991979]

約数ペア:

[(1, 1991979), (3, 663993), (9, 221331), (11, 181089), (19, 104841), (27, 73777), (33, 60363), (57, 34947), (99, 20121), (171, 11649), (209, 9531), (297, 6707), (353, 5643), (513, 3883), (627, 3177), (1059, 1881)]