21084856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6991}}^1$

素因数の和:7039

約数の個数: 32

約数和(自身を含む): 44049600

約数和(自身を除く): 22964744

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6991, 13982, 27964, 55928, 90883, 181766, 202739, 363532, 405478, 727064, 810956, 1621912, 2635607, 5271214, 10542428, 21084856]

約数ペア:

[(1, 21084856), (2, 10542428), (4, 5271214), (8, 2635607), (13, 1621912), (26, 810956), (29, 727064), (52, 405478), (58, 363532), (104, 202739), (116, 181766), (232, 90883), (377, 55928), (754, 27964), (1508, 13982), (3016, 6991)]