21153920528

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1918897}}^1$

素因数の和:1918971

約数の個数: 40

約数和(自身を含む): 44971293528

約数和(自身を除く): 23817373000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 2756, 5512, 11024, 1918897, 3837794, 7675588, 15351176, 24945661, 30702352, 49891322, 99782644, 101701541, 199565288, 203403082, 399130576, 406806164, 813612328, 1322120033, 1627224656, 2644240066, 5288480132, 10576960264, 21153920528]

約数ペア:

[(1, 21153920528), (2, 10576960264), (4, 5288480132), (8, 2644240066), (13, 1627224656), (16, 1322120033), (26, 813612328), (52, 406806164), (53, 399130576), (104, 203403082), (106, 199565288), (208, 101701541), (212, 99782644), (424, 49891322), (689, 30702352), (848, 24945661), (1378, 15351176), (2756, 7675588), (5512, 3837794), (11024, 1918897)]