20805426

素因数分解:

$2^1\times 3^2\times {\mathrm{347}}^1\times {\mathrm{3331}}^1$

素因数の和:3686

約数の個数: 24

約数和(自身を含む): 45221904

約数和(自身を除く): 24416478

約数列:

[1, 2, 3, 6, 9, 18, 347, 694, 1041, 2082, 3123, 3331, 6246, 6662, 9993, 19986, 29979, 59958, 1155857, 2311714, 3467571, 6935142, 10402713, 20805426]

約数ペア:

[(1, 20805426), (2, 10402713), (3, 6935142), (6, 3467571), (9, 2311714), (18, 1155857), (347, 59958), (694, 29979), (1041, 19986), (2082, 9993), (3123, 6662), (3331, 6246)]