81185377

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 105799680

約数和(自身を除く): 24614303

約数列:

[1, 7, 13, 23, 79, 91, 161, 299, 491, 553, 1027, 1817, 2093, 3437, 6383, 7189, 11293, 12719, 23621, 38789, 44681, 79051, 146809, 165347, 271523, 504257, 892147, 1027663, 3529799, 6245029, 11597911, 81185377]

約数ペア:

[(1, 81185377), (7, 11597911), (13, 6245029), (23, 3529799), (79, 1027663), (91, 892147), (161, 504257), (299, 271523), (491, 165347), (553, 146809), (1027, 79051), (1817, 44681), (2093, 38789), (3437, 23621), (6383, 12719), (7189, 11293)]