20984945828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1584487}}^1$

素因数の和:1584552

約数の個数: 48

約数和(自身を含む): 46850141184

約数和(自身を除く): 25865195356

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1892, 3311, 6622, 13244, 1584487, 3168974, 6337948, 11091409, 17429357, 22182818, 34858714, 44365636, 68132941, 69717428, 122005499, 136265882, 244010998, 272531764, 476930587, 488021996, 749462351, 953861174, 1498924702, 1907722348, 2997849404, 5246236457, 10492472914, 20984945828]

約数ペア:

[(1, 20984945828), (2, 10492472914), (4, 5246236457), (7, 2997849404), (11, 1907722348), (14, 1498924702), (22, 953861174), (28, 749462351), (43, 488021996), (44, 476930587), (77, 272531764), (86, 244010998), (154, 136265882), (172, 122005499), (301, 69717428), (308, 68132941), (473, 44365636), (602, 34858714), (946, 22182818), (1204, 17429357), (1892, 11091409), (3311, 6337948), (6622, 3168974), (13244, 1584487)]