21016736

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2659}}^1$

素因数の和:2701

約数の個数: 48

約数和(自身を含む): 46922400

約数和(自身を除く): 25905664

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2659, 3952, 5318, 7904, 10636, 21272, 34567, 42544, 50521, 69134, 85088, 101042, 138268, 202084, 276536, 404168, 553072, 656773, 808336, 1106144, 1313546, 1616672, 2627092, 5254184, 10508368, 21016736]

約数ペア:

[(1, 21016736), (2, 10508368), (4, 5254184), (8, 2627092), (13, 1616672), (16, 1313546), (19, 1106144), (26, 808336), (32, 656773), (38, 553072), (52, 404168), (76, 276536), (104, 202084), (152, 138268), (208, 101042), (247, 85088), (304, 69134), (416, 50521), (494, 42544), (608, 34567), (988, 21272), (1976, 10636), (2659, 7904), (3952, 5318)]