920945921

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1181

約数の個数: 32

約数和(自身を含む): 1133180928

約数和(自身を除く): 212235007

約数列:

[1, 7, 23, 43, 137, 161, 301, 959, 971, 989, 3151, 5891, 6797, 6923, 22057, 22333, 41237, 41753, 133027, 135493, 156331, 292271, 931189, 948451, 960319, 3059621, 5720161, 6722233, 21417347, 40041127, 131563703, 920945921]

約数ペア:

[(1, 920945921), (7, 131563703), (23, 40041127), (43, 21417347), (137, 6722233), (161, 5720161), (301, 3059621), (959, 960319), (971, 948451), (989, 931189), (3151, 292271), (5891, 156331), (6797, 135493), (6923, 133027), (22057, 41753), (22333, 41237)]