21309752

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 19816648

約数列:

[1, 2, 4, 8, 67, 83, 134, 166, 268, 332, 479, 536, 664, 958, 1916, 3832, 5561, 11122, 22244, 32093, 39757, 44488, 64186, 79514, 128372, 159028, 256744, 318056, 2663719, 5327438, 10654876, 21309752]

約数ペア:

[(1, 21309752), (2, 10654876), (4, 5327438), (8, 2663719), (67, 318056), (83, 256744), (134, 159028), (166, 128372), (268, 79514), (332, 64186), (479, 44488), (536, 39757), (664, 32093), (958, 22244), (1916, 11122), (3832, 5561)]