20323303

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 27740160

約数和(自身を除く): 7416857

約数列:

[1, 7, 11, 13, 77, 79, 91, 143, 257, 553, 869, 1001, 1027, 1799, 2827, 3341, 6083, 7189, 11297, 19789, 20303, 23387, 36751, 79079, 142121, 223333, 257257, 263939, 1563331, 1847573, 2903329, 20323303]

約数ペア:

[(1, 20323303), (7, 2903329), (11, 1847573), (13, 1563331), (77, 263939), (79, 257257), (91, 223333), (143, 142121), (257, 79079), (553, 36751), (869, 23387), (1001, 20303), (1027, 19789), (1799, 11297), (2827, 7189), (3341, 6083)]