20916896

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{653}}^1$

素因数の和:694

約数の個数: 96

約数和(自身を含む): 55375488

約数和(自身を除く): 34458592

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 224, 286, 308, 352, 364, 416, 572, 616, 653, 728, 1001, 1144, 1232, 1306, 1456, 2002, 2288, 2464, 2612, 2912, 4004, 4571, 4576, 5224, 7183, 8008, 8489, 9142, 10448, 14366, 16016, 16978, 18284, 20896, 28732, 32032, 33956, 36568, 50281, 57464, 59423, 67912, 73136, 93379, 100562, 114928, 118846, 135824, 146272, 186758, 201124, 229856, 237692, 271648, 373516, 402248, 475384, 653653, 747032, 804496, 950768, 1307306, 1494064, 1608992, 1901536, 2614612, 2988128, 5229224, 10458448, 20916896]

約数ペア:

[(1, 20916896), (2, 10458448), (4, 5229224), (7, 2988128), (8, 2614612), (11, 1901536), (13, 1608992), (14, 1494064), (16, 1307306), (22, 950768), (26, 804496), (28, 747032), (32, 653653), (44, 475384), (52, 402248), (56, 373516), (77, 271648), (88, 237692), (91, 229856), (104, 201124), (112, 186758), (143, 146272), (154, 135824), (176, 118846), (182, 114928), (208, 100562), (224, 93379), (286, 73136), (308, 67912), (352, 59423), (364, 57464), (416, 50281), (572, 36568), (616, 33956), (653, 32032), (728, 28732), (1001, 20896), (1144, 18284), (1232, 16978), (1306, 16016), (1456, 14366), (2002, 10448), (2288, 9142), (2464, 8489), (2612, 8008), (2912, 7183), (4004, 5224), (4571, 4576)]