20405418

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{309173}}^1$

素因数の和:309189

約数の個数: 16

約数和(自身を含む): 44521056

約数和(自身を除く): 24115638

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 309173, 618346, 927519, 1855038, 3400903, 6801806, 10202709, 20405418]

約数ペア:

[(1, 20405418), (2, 10202709), (3, 6801806), (6, 3400903), (11, 1855038), (22, 927519), (33, 618346), (66, 309173)]