820761981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{4967}}^1$

素因数の和:5225

約数の個数: 32

約数和(自身を含む): 1246371840

約数和(自身を除く): 425609859

約数列:

[1, 3, 13, 19, 39, 57, 223, 247, 669, 741, 2899, 4237, 4967, 8697, 12711, 14901, 55081, 64571, 94373, 165243, 193713, 283119, 1107641, 1226849, 3322923, 3680547, 14399333, 21045179, 43197999, 63135537, 273587327, 820761981]

約数ペア:

[(1, 820761981), (3, 273587327), (13, 63135537), (19, 43197999), (39, 21045179), (57, 14399333), (223, 3680547), (247, 3322923), (669, 1226849), (741, 1107641), (2899, 283119), (4237, 193713), (4967, 165243), (8697, 94373), (12711, 64571), (14901, 55081)]