1691361

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:195

約数の個数: 40

約数和(自身を含む): 3058880

約数和(自身を除く): 1367519

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 157, 171, 189, 399, 471, 513, 567, 1099, 1197, 1413, 1539, 2983, 3297, 3591, 4239, 8949, 9891, 10773, 12717, 20881, 26847, 29673, 62643, 80541, 89019, 187929, 241623, 563787, 1691361]

約数ペア:

[(1, 1691361), (3, 563787), (7, 241623), (9, 187929), (19, 89019), (21, 80541), (27, 62643), (57, 29673), (63, 26847), (81, 20881), (133, 12717), (157, 10773), (171, 9891), (189, 8949), (399, 4239), (471, 3591), (513, 3297), (567, 2983), (1099, 1539), (1197, 1413)]