19873568

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 47500992

約数和(自身を除く): 27627424

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 43, 44, 52, 86, 88, 101, 104, 143, 172, 176, 202, 208, 286, 344, 352, 404, 416, 473, 559, 572, 688, 808, 946, 1111, 1118, 1144, 1313, 1376, 1616, 1892, 2222, 2236, 2288, 2626, 3232, 3784, 4343, 4444, 4472, 4576, 5252, 6149, 7568, 8686, 8888, 8944, 10504, 12298, 14443, 15136, 17372, 17776, 17888, 21008, 24596, 28886, 34744, 35552, 42016, 47773, 49192, 56459, 57772, 69488, 95546, 98384, 112918, 115544, 138976, 191092, 196768, 225836, 231088, 382184, 451672, 462176, 621049, 764368, 903344, 1242098, 1528736, 1806688, 2484196, 4968392, 9936784, 19873568]

約数ペア:

[(1, 19873568), (2, 9936784), (4, 4968392), (8, 2484196), (11, 1806688), (13, 1528736), (16, 1242098), (22, 903344), (26, 764368), (32, 621049), (43, 462176), (44, 451672), (52, 382184), (86, 231088), (88, 225836), (101, 196768), (104, 191092), (143, 138976), (172, 115544), (176, 112918), (202, 98384), (208, 95546), (286, 69488), (344, 57772), (352, 56459), (404, 49192), (416, 47773), (473, 42016), (559, 35552), (572, 34744), (688, 28886), (808, 24596), (946, 21008), (1111, 17888), (1118, 17776), (1144, 17372), (1313, 15136), (1376, 14443), (1616, 12298), (1892, 10504), (2222, 8944), (2236, 8888), (2288, 8686), (2626, 7568), (3232, 6149), (3784, 5252), (4343, 4576), (4444, 4472)]