21966352

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 40

約数和(自身を含む): 44655872

約数和(自身を除く): 22689520

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 661, 1072, 1322, 2077, 2644, 4154, 5288, 8308, 10576, 16616, 20491, 33232, 40982, 44287, 81964, 88574, 163928, 177148, 327856, 354296, 708592, 1372897, 2745794, 5491588, 10983176, 21966352]

約数ペア:

[(1, 21966352), (2, 10983176), (4, 5491588), (8, 2745794), (16, 1372897), (31, 708592), (62, 354296), (67, 327856), (124, 177148), (134, 163928), (248, 88574), (268, 81964), (496, 44287), (536, 40982), (661, 33232), (1072, 20491), (1322, 16616), (2077, 10576), (2644, 8308), (4154, 5288)]