20782531

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 6796349

約数列:

[1, 7, 11, 29, 41, 77, 203, 227, 287, 319, 451, 1189, 1589, 2233, 2497, 3157, 6583, 8323, 9307, 13079, 17479, 46081, 65149, 72413, 91553, 102377, 269903, 506891, 716639, 1889321, 2968933, 20782531]

約数ペア:

[(1, 20782531), (7, 2968933), (11, 1889321), (29, 716639), (41, 506891), (77, 269903), (203, 102377), (227, 91553), (287, 72413), (319, 65149), (451, 46081), (1189, 17479), (1589, 13079), (2233, 9307), (2497, 8323), (3157, 6583)]