28201724

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 50703408

約数和(自身を除く): 22501684

約数列:

[1, 2, 4, 53, 106, 137, 212, 274, 548, 971, 1942, 3884, 7261, 14522, 29044, 51463, 102926, 133027, 205852, 266054, 532108, 7050431, 14100862, 28201724]

約数ペア:

[(1, 28201724), (2, 14100862), (4, 7050431), (53, 532108), (106, 266054), (137, 205852), (212, 133027), (274, 102926), (548, 51463), (971, 29044), (1942, 14522), (3884, 7261)]