20648894

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9161}}^1$

素因数の和:9200

約数の個数: 24

約数和(自身を含む): 37600848

約数和(自身を除く): 16951954

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 9161, 18322, 64127, 128254, 210703, 421406, 448889, 897778, 1474921, 2949842, 10324447, 20648894]

約数ペア:

[(1, 20648894), (2, 10324447), (7, 2949842), (14, 1474921), (23, 897778), (46, 448889), (49, 421406), (98, 210703), (161, 128254), (322, 64127), (1127, 18322), (2254, 9161)]