20408938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{4051}}^1$

素因数の和:4293

約数の個数: 16

約数和(自身を含む): 33550560

約数和(自身を除く): 13141622

約数列:

[1, 2, 11, 22, 229, 458, 2519, 4051, 5038, 8102, 44561, 89122, 927679, 1855358, 10204469, 20408938]

約数ペア:

[(1, 20408938), (2, 10204469), (11, 1855358), (22, 927679), (229, 89122), (458, 44561), (2519, 8102), (4051, 5038)]