20686986

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16187}}^1$

素因数の和:16266

約数の個数: 24

約数和(自身を含む): 45455904

約数和(自身を除く): 24768918

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16187, 32374, 48561, 97122, 145683, 291366, 1149277, 2298554, 3447831, 6895662, 10343493, 20686986]

約数ペア:

[(1, 20686986), (2, 10343493), (3, 6895662), (6, 3447831), (9, 2298554), (18, 1149277), (71, 291366), (142, 145683), (213, 97122), (426, 48561), (639, 32374), (1278, 16187)]