19508937

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{6781}}^1$

素因数の和:6928

約数の個数: 16

約数和(自身を含む): 29949312

約数和(自身を除く): 10440375

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 6781, 20343, 47467, 142401, 928997, 2786991, 6502979, 19508937]

約数ペア:

[(1, 19508937), (3, 6502979), (7, 2786991), (21, 928997), (137, 142401), (411, 47467), (959, 20343), (2877, 6781)]