20516118

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{739}}^1$

素因数の和:1412

約数の個数: 32

約数和(自身を含む): 47028480

約数和(自身を除く): 26512362

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 661, 739, 1322, 1478, 1983, 2217, 3966, 4434, 4627, 5173, 9254, 10346, 13881, 15519, 27762, 31038, 488479, 976958, 1465437, 2930874, 3419353, 6838706, 10258059, 20516118]

約数ペア:

[(1, 20516118), (2, 10258059), (3, 6838706), (6, 3419353), (7, 2930874), (14, 1465437), (21, 976958), (42, 488479), (661, 31038), (739, 27762), (1322, 15519), (1478, 13881), (1983, 10346), (2217, 9254), (3966, 5173), (4434, 4627)]