51561993

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{18743}}^1$

素因数の和:18884

約数の個数: 16

約数和(自身を含む): 79174656

約数和(自身を除く): 27612663

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 18743, 56229, 131201, 393603, 2455333, 7365999, 17187331, 51561993]

約数ペア:

[(1, 51561993), (3, 17187331), (7, 7365999), (21, 2455333), (131, 393603), (393, 131201), (917, 56229), (2751, 18743)]