20207313

素因数分解:

$3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 34871232

約数和(自身を除く): 14663919

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 157, 189, 227, 471, 567, 681, 1099, 1413, 1589, 2043, 3297, 4239, 4767, 6129, 9891, 12717, 14301, 18387, 29673, 35639, 42903, 89019, 106917, 128709, 249473, 320751, 748419, 962253, 2245257, 2886759, 6735771, 20207313]

約数ペア:

[(1, 20207313), (3, 6735771), (7, 2886759), (9, 2245257), (21, 962253), (27, 748419), (63, 320751), (81, 249473), (157, 128709), (189, 106917), (227, 89019), (471, 42903), (567, 35639), (681, 29673), (1099, 18387), (1413, 14301), (1589, 12717), (2043, 9891), (3297, 6129), (4239, 4767)]