20494688

素因数分解:

$2^5\times {\mathrm{131}}^1\times {\mathrm{4889}}^1$

素因数の和:5030

約数の個数: 24

約数和(自身を含む): 40665240

約数和(自身を除く): 20170552

約数列:

[1, 2, 4, 8, 16, 32, 131, 262, 524, 1048, 2096, 4192, 4889, 9778, 19556, 39112, 78224, 156448, 640459, 1280918, 2561836, 5123672, 10247344, 20494688]

約数ペア:

[(1, 20494688), (2, 10247344), (4, 5123672), (8, 2561836), (16, 1280918), (32, 640459), (131, 156448), (262, 78224), (524, 39112), (1048, 19556), (2096, 9778), (4192, 4889)]