20888973105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1391207}}^1$

素因数の和:1391246

約数の個数: 64

約数和(自身を含む): 44874805248

約数和(自身を除く): 23985832143

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 143, 165, 195, 231, 273, 385, 429, 455, 715, 1001, 1155, 1365, 2145, 3003, 5005, 15015, 1391207, 4173621, 6956035, 9738449, 15303277, 18085691, 20868105, 29215347, 45909831, 48692245, 54257073, 76516385, 90428455, 107122939, 126599837, 146076735, 198942601, 229549155, 271285365, 321368817, 379799511, 535614695, 596827803, 632999185, 994713005, 1392598207, 1606844085, 1898997555, 2984139015, 4177794621, 6962991035, 20888973105]

約数ペア:

[(1, 20888973105), (3, 6962991035), (5, 4177794621), (7, 2984139015), (11, 1898997555), (13, 1606844085), (15, 1392598207), (21, 994713005), (33, 632999185), (35, 596827803), (39, 535614695), (55, 379799511), (65, 321368817), (77, 271285365), (91, 229549155), (105, 198942601), (143, 146076735), (165, 126599837), (195, 107122939), (231, 90428455), (273, 76516385), (385, 54257073), (429, 48692245), (455, 45909831), (715, 29215347), (1001, 20868105), (1155, 18085691), (1365, 15303277), (2145, 9738449), (3003, 6956035), (5005, 4173621), (15015, 1391207)]