20161293

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 28513056

約数和(自身を除く): 8351763

約数列:

[1, 3, 29, 61, 87, 131, 183, 393, 841, 1769, 2523, 3799, 5307, 7991, 11397, 23973, 51301, 110171, 153903, 231739, 330513, 695217, 6720431, 20161293]

約数ペア:

[(1, 20161293), (3, 6720431), (29, 695217), (61, 330513), (87, 231739), (131, 153903), (183, 110171), (393, 51301), (841, 23973), (1769, 11397), (2523, 7991), (3799, 5307)]