1821981931

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1\times {\mathrm{2089}}^1$

素因数の和:2395

約数の個数: 32

約数和(自身を含む): 2330634240

約数和(自身を除く): 508652309

約数列:

[1, 7, 11, 47, 77, 241, 329, 517, 1687, 2089, 2651, 3619, 11327, 14623, 18557, 22979, 79289, 98183, 124597, 160853, 503449, 687281, 872179, 1080013, 3524143, 5537939, 7560091, 23662103, 38765573, 165634721, 260283133, 1821981931]

約数ペア:

[(1, 1821981931), (7, 260283133), (11, 165634721), (47, 38765573), (77, 23662103), (241, 7560091), (329, 5537939), (517, 3524143), (1687, 1080013), (2089, 872179), (2651, 687281), (3619, 503449), (11327, 160853), (14623, 124597), (18557, 98183), (22979, 79289)]